• CASP Subquestions
Note . The CASP questions are adapted from “10 questions to help you make sense of qualitative research,” by Critical Appraisal Skills Programme, 2013, retrieved from http://media.wix.com/ugd/dded87_29c5b002d99342f788c6ac670e49f274.pdf . Its license can be found at http://creativecommons.org/licenses/by-nc-sa/3.0/
Once articles were assessed by the two authors independently, all three authors discussed and reconciled our assessment. No articles were excluded based on CASP results; rather, results were used to depict the general adequacy (or rigor) of all 55 articles meeting inclusion criteria for our systematic review. In addition, the CASP was included to enhance our examination of the relationship between the methods and the usefulness of the findings documented in each of the QD articles included in this review.
To further assess each of the 55 articles, data were extracted on: (a) research objectives, (b) design justification, (c) theoretical or philosophical framework, (d) sampling and sample size, (e) data collection and data sources, (f) data analysis, and (g) presentation of findings (see Table 2 ). We discussed extracted data and identified common and unique features in the articles included in our systematic review. Findings are described in detail below and in Table 3 .
Elements for Data Extraction
Elements | Data Extraction |
---|---|
Research objectives | • Verbs used in objectives or aims |
• Focuses of study | |
Design justification | • If the article cited references for qualitative description |
• If the article offered rationale to choose qualitative description | |
• References cited | |
• Rationale reported | |
Theoretical or philosophical frameworks | • If the article has theoretical or philosophical frameworks for study |
• Theoretical or philosophical frameworks reported | |
• How the frameworks were used in data collection and analysis | |
Sampling and sample sizes | • Sampling strategies (e.g., purposeful sampling, maximum variation) |
• Sample size | |
Data collection and sources | • Data collection techniques (e.g., individual or focus-group interviews, interview guide, surveys, field notes) |
Data analysis | • Data analysis techniques (e.g., qualitative content analysis, thematic analysis, constant comparison) |
• If data saturation was achieved | |
Presentation of findings | • Statement of findings |
• Consistency with research objectives |
Data Extraction and Analysis Results
Authors Country | Research Objectives | Design justification | Theoretical/ philosophical frameworks | Sampling/ sample size | Data collection and data sources | Data analysis | Findings |
---|---|---|---|---|---|---|---|
• USA | • Explore • Responses to communication strategies | • (-) Reference • (-) Rationale | Not reported (NR) | • Purposive sampling/ maximum variation • 32 family members | • Interviews • Observations • Review of daily flow sheet • Demographics | • Inductive and deductive qualitative content analysis • (-) Data saturation | Five themes about family members’ perceptions of nursing communication approaches |
• Sweden | • Describe • Experiences of using guidelines in daily practice | • (-) Reference • (+) Rationale • Part of a research program | NR | • Unspecified • 8 care providers | • Semistructured, individual interviews • Interview guide | • Qualitative content analysis • (-) Data saturation | One theme and seven subthemes about care providers’ experiences of using guidelines in daily practice |
• USA | • Examine • Culturally specific views of processes and causes of midlife weight gain | • (-) Reference • (-) Rationale | Health belief model and Kleiman’s explanatory model | • Unspecified • 19 adults | • Semistructured, individual interview | • Conventional content analysis • (-) Data saturation | Three main categories (from the model) and eight subthemes about causes of weight gain in midlife |
• Iran | • Explore • Factors initiating responsibility among medical trainees | • (-) Reference • (+) Rationale | NR | • Convenience, snowball, and maximum variation sampling • 15 trainees and other professionals | • Semistructured, individual interview • Interview guide | • Conventional content analysis • Constant comparison • (+) Data saturation | Two themes and individual and non- individual-based factors per theme |
• Iran | • Explore • Factors related to job satisfaction and dissatisfaction | • (-) Reference • (-) Rationale | NR | • Convenience sampling • 85 nurses | • Semistructured focus group interviews • Interview guide | • Thematic analysis • (+) Data saturation | Three main themes and associated factors regarding job satisfaction and dissatisfaction |
• Norway | • Describe • Perceptions on simulation-based team training | • (-) Reference • (-) Rationale | NR | • Strategic sampling • 18 registered nurses | • Semistructured individual interviews | • Inductive content analysis • (-) Data saturation | One main category, three categories, and six sub- categories regarding nurses’ perceptions on simulation-based team training |
• USA | • Determine • Barriers and supports for attending college and nursing school | • (-) Reference • (-) Rationale | NR | • Unspecified • 45 students | • Focus-group interviews • Using Photovoice and SHOWeD | • Constant comparison • (-) Data saturation | Five themes about facilitators and barriers |
• USA | • Explore • Reasons for choosing home birth and birth experiences | • (-) Reference • (-) Rationale | NR | • Purposeful sampling • 20 women | • Semistructured focus-group interviews • Interview guide • Field notes | • Qualitative content analysis • (+) Data saturation | Five common themes and concepts about reasons for choosing home birth based on their birth experiences |
• New Zealand | • Explore • Normal fetal activity related to hunger and satiation | • (+) Reference • (+) Rationale • • Denzin & Lincoln (2011) | NR | • Purposive sampling • 19 pregnant women | • Semistructured individual interviews • Open-ended questions | • Inductive qualitative content analysis • Descriptive statistical analysis • (+) Data saturation | Four patterns regarding fetal activities in relation to meal anticipation, maternal hunger, maternal meal consummation, and maternal satiety |
• Italy | • Explore, describe, and compare • perceptions of nursing caring | • (+) Reference • (-) Rationale • | NR | • Purposive sampling • 20 nurses and 20 patients | • Semistructured individual interviews • Interview guide • Field notes during interviews | • Unspecified various analytic strategies including constant comparison • (-) Data saturation | Nursing caring from both patients’ and nurses’ perspectives – a summary of data in visible caring and invisible caring |
• Hong Kong | • Address • How to reduce coronary heart disease risks | • (+) Reference • (+) Rationale • Secondary analysis • • | NR | • Convenience and snowball sampling • 105 patients | • Focus-group interviews • Interview guide | • Content analysis • (+) Data saturation | Four categories about patients’ abilities to reduce coronary heart disease |
• Taiwan | • Explore • Reasons for young–old people not killing themselves | • (-) Reference • (-) Rationale | NR | • Convenience sampling • 31 older adults | • Semistructured individual interviews • Interview guide • Observation with memos/reflective journal | • Content analysis • (+) Data saturation | Six themes regarding reasons for not committing to suicide |
• USA | • Explore • Neonatal intensive care unit experiences | • (+) Reference • (+) Rationale • | NR | • Purposive sampling and convenience sample • 15 mothers | • Semistructured individual interviews • Interview guide | • Qualitative content analysis • (+) Data saturation | Four themes about participants’ experiences of neonatal intensive care unit |
• Colombia | • Investigate • Barriers/facilitators to implementing evidence-based nursing | • (+) Reference • (-) Rationale • | Ottawa model for research use: knowledge translation framework | • Convenience sampling • 13 nursing professionals | • Semistructured individual interviews • Interview guide | • Inductive qualitative content analysis • Constant comparison • (-) Data saturation | Four main barriers and potential facilitators to evidence-based nursing |
• Australia | • Explore • Perceptions and utilization of diaries | • (+) Reference • (-) Rationale • | NR | • Unspecified • 19 patients and families | • Responses to open-ended questions on survey | • Unspecified analysis strategy • (-) Data saturation | Five themes regarding perceptions on use of diaries and descriptive statistics using frequencies of utilization |
• USA | • Explore • Knowledge, attitudes, and beliefs about sexual consent | • (-) Reference • (-) Rationale • Part of a larger mixed-method study | Theory of planned behavior | • Purposive sampling • snowball sampling • 26 women | • Semistructured focus-group interviews • Interview guide | • Content analysis • (+) Data saturation | Three main categories and subthemes regarding sexual consent |
• Sweden | • Describe • Experiences of knowledge development in wound management | • (+) Reference • (+) Rationale: weak • | NR | • Purposive sampling • 16 district nurses | • Individual interviews • Interview guide | • Qualitative content analysis • (-) Data saturation | Three categories and eleven sub-categories about knowledge development experiences in wound management |
• USA | • Describe • Parental-pain journey, beliefs about pain, and attitudes/behaviors related to children’s responses | • (+) Reference • (+) Rationale • • • Part of a larger mixed methods study | NR | • Purposive sampling • 9 parents | • Individual interviews • One open- ended question | • Qualitative content analysis • (+) Data saturation | Two main themes, categories, and subcategories about parents’ experiences of observing children’s pain |
• USA | • Describe • Challenges and barriers in providing culturally competent care | • (+) Reference • (+) Rationale • • Secondary analysis | NR | • Stratified sampling • 253 nurses | • Written responses to 2 open-ended questions on survey | • Thematic analysis • (-) Data saturation | Three themes regarding challenges/barriers |
• Denmark | • Describe • Experiences of childbirth | • (-) Reference • (-) Rationale • A substudy | NR | • Purposive sampling with maximum variation • Partners of 10 women | • Semistructured, individual interviews • Interview guide | • Thematic analysis • (+) Data saturation | Three themes and four subthemes about partners’ experiences of women’s childbirth |
• Australia | • Explore • Perceptions about medical nutrition and hydration at the end of life | • (+) Reference • (+) Rationale • | NR | • Purposeful sampling • 10 nurses | • Focus-group interviews | • “analyzed thematically” • (-) Data saturation | One main theme and four subthemes regarding nurses’ perceptions on EOL- related medical nutrition and hydration |
• USA | • Describe • Reasons for leaving a home visiting program early | • (-) Reference • (-) Rationale | NR | • Convenience sample • 32 mothers, nurses, and nurse supervisors | • Semistructured, individual interviews • Focus-group interviews • Interview guide | • Inductive content analysis • Constant comparison approach • (+) Data saturation | Three sets of reasons for leaving a home visiting program |
• Sweden | • Explore and describe • Beliefs and attitudes around the decision for a caesarean section | • (+) Reference • (+) Rationale • • | NR | • Unspecified • 21 males | • Individual telephone interviews | • Thematic analysis • Constant comparison approach • (-) Data saturation | Two themes and subthemes in relation to the research objective |
• Taiwan | • Explore • Illness experiences of early onset of knee osteoarthritis | • (+) Reference • (+) Rationale • • • Part of a large research series | NR | • Purposive sampling • 17 adults | • Semistructured, Individual interviews • Interview guide • Memo/field notes (observations) | • Inductive content analysis • (+) Data saturation | Three major themes and nine subthemes regarding experiences of early onset-knee osteoarthritis |
• Australia | • Explore • Perceptions about bedside handover (new model) by nurses | • (+) Reference • (+) Rationale • • | NR | • Purposive sampling • 30 patients | • Semistructured, individual interviews • Interview guide | • Thematic content analysis • (-) Data analysis | Two dominant themes and related subthemes regarding patients’ thoughts about nurses’ bedside handover |
• Sweden | • Identify • Patterns in learning when living with diabetes | • (-) Reference • (-) Rationale | NR | • Purposive sampling with variations in age and sex • 13 participants | • Semistructured, individual interviews (3 times over 3 years) | • analysis process • Inductive qualitative content analysis • (-) Data saturation | Five main patterns of learning when living with diabetes for three years following diagnosis |
• Canada | • Evaluate • Book chat intervention based on a novel | • (-) Reference • (-) Rationale • Part of a larger research project | NR | • Unspecified • 11 long-term- care staff | • Questionnaire with two open- ended questions | • Thematic content analysis • (-) Data saturation | Five themes (positive comments) about the book chat with brief description |
• Taiwan | • Explore • Facilitators and barriers to implementing smoking- cessation counseling services | • (-) Reference • (-) Rationale | NR | • Unspecified • 16 nurse- counselors | • Semistructured individual interviews • Interview guide | • Inductive content analysis • Constant comparison • (-) Data saturation | Two themes and eight subthemes about facilitators and barriers described using 2-4 quotations per subtheme |
• USA | • Identify • Educational strategies to manage disruptive behavior | • (-) Reference • (-) Rationale • Part of a larger study | NR | • Unspecified • 9 nurses | • Semistructured, individual interviews • Interview guide | • Content analysis procedures • (-) Data saturation | Two main themes regarding education strategies for nurse educators |
• USA | • Explore • Experiences of difficulty resolving patient- related concerns | • (-) Reference • (-) Rationale • Secondary analysis | NR | • Unspecified • 1932 physician, nursing, and midwifery professionals | • E-mail survey with multiple- choice and free- text responses | • Inductive thematic analysis • Descriptive statistics • (-) Data saturation | One overarching theme and four subthemes about professionals’ experiences of difficulty resolving patient-related concerns |
• Singapore | • Explicate • Experience of quality of life for older adults | • (+) Reference • (+) Rationale • | Parse’s human becoming paradigm | • Unspecified • 10 elderly residents | • Individual interviews • Interview questions presented (Parse) | • Unspecified analysis techniques • (-) Data saturation | Three themes presented using both participants’ language and the researcher’s language |
• China | • Explore • Perspectives on learning about caring | • (-) Reference • (-) Rationale | NR | • Purposeful sampling • 20 nursing students | • Focus-group interviews • Interview guide | • Conventional content analysis • (-) Data saturation | Four categories and associated subcategories about facilitators and challenges to learning about caring |
• Poland | • Describe and assess • Components of the patient–nurse relationship and pediatric-ward amenities | • (+) Reference • (-) Rationale • | NR | • Purposeful, maximum variation sampling • 26 parents or caregivers and 22 children | • Individual interviews | • Qualitative content analysis • (-) Data saturation | Five main topics described from the perspectives of children and parents |
• Canada | • Evaluate • Acceptability and feasibility of hand-massage therapy | • (-) Reference • (-) Rationale • Secondary to a RCT | Focused on feasibility and acceptability | • Unspecified • 40 patients | • Semistructured, individual interviews • Field notes • Video recording | • Thematic analysis for acceptability • Quantitative ratings of video items for feasibility • (-) Data analysis | Summary of data focusing on predetermined indicators of acceptability and descriptive statistics to present feasibility |
• USA | • Understand • Challenges occurring during transitions of care | • (+) Reference • (+) Rationale • • Part of a larger study | NR | • Convenience sample • 22 nurses | • Focus groups • Interview guide | • Qualitative content analysis methods • (+) Data analysis | Three themes about challenges regarding transitions of care: |
• Canada | • Understand • Factors that influence nurses’ retention in their current job | • (-) Reference • (-) Rationale | NR | • Purposeful sampling • 41 nurses | • Focus-group interviews • Interview guide | • Directed content analysis • (+) Data saturation | Nurses’ reasons to stay and leave their current job |
• Australia | • Extend • Understanding of caregivers’ views on advance care planning | • (+) Reference • (+) Rationale • • Grounded theory overtone | NR | • Theoretical sampling • 18 caregivers | • Semistructured focus group and individual interviews • Interview guide • Vignette technique | • Inductive, cyclic, and constant comparative analysis • (-) Data analysis | Three themes regarding caregivers’ perceptions on advance care planning |
• USA | • Describe • Outcomes older adults with epilepsy hope to achieve in management | • (-) Reference • (-) Rationale | NR | • Unspecified • 20 patients | • Individual interview | • Conventional content analysis • (-) Data saturation | Six main themes and associated subthemes regarding what older adults hoped to achieve in management of their epilepsy |
• The Netherlands | • Gain • Experience of personal dignity and factors influencing it | • (+) Reference • (-) Rationale • | Model of dignity in illness | • Maximum variation sampling • 30 nursing home residents | • Individual interviews • Interview guide | • Thematic analysis • Constant comparison • (+) Data saturation | The threatening effect of illness and three domains being threatened by illness in relation to participants’ experiences of personal dignity |
• USA | • Identify and describe • Needs in mental health services and “ideal” program | • (+) Reference • (+) Rationale • • There is a primary study | NR | • Unspecified • 52 family members | • Semistructured, individual and focus-group interviews | • “Standard content analytic procedures” with case-ordered meta-matrix • (-) Data saturation | Two main topics – (a) intervention modalities that would fit family members’ needs in mental health services and (b) topics that programs should address |
• USA | • “What are the perceptions of staff nurses regarding palliative care…?” | • (-) Reference • (-) Rationale | NR | • Purposive, convenience sampling • 18 nurses | • Semistructured and focus-group interviews • Interview guide | • Ritchie and Spencer’s framework for data analysis • (-) Data saturation | Five thematic categories and associated subcategories about nurses’ perceptions of palliative care |
• Canada | • Describe • Experience of caring for a relative with dementia | • (+) Reference • (+) Rationale • Sandelowski ( ; ) • Secondary analysis • Phenomenological overtone | NR | • Purposive sampling • 11 bereaved family members | • Individual interviews • 27 transcripts from the primary study | • Unspecified • (-) Data saturation | Five major themes regarding the journey with dementia from the time prior to diagnosis and into bereavement |
• Canada | • Describe Experience of fetal fibronectin testing | • (+) Reference • (+) Rationale • • | NR | • Unspecified • 17 women | • Semistructured individual interviews • Interview guide | • Conventional content analysis • (+) Data saturation | One overarching theme, three themes, and six subthemes about women’s experiences of fetal fibronectin testing |
• New Zealand | • Explore • Role of nurses in providing palliative and end-of-life care | • (+) Reference • (+) Rationale • • Part of a larger study | NR | • Purposeful sampling • 21 nurses | • Semistructured individual interviews | • Thematic analysis • (-) Data saturation | Three themes about practice nurses’ experiences in providing palliative and end-of-life care |
• Brazil | • Understand • Experience with postnatal depression | • (+) Reference • (-) Rationale • | NR | • Purposeful, criterion sampling • 15 women with postnatal depression | • Minimally structured, individual interviews | • Thematic analysis • (+) Data saturation | Two themes – women’s “bad thoughts” and their four types of responses to fear of harm (with frequencies) |
• Australia | • Understand • Experience of peripherally inserted central catheter insertion | • (+) Reference • (+) Rationale • | NR | • Purposeful sampling • 10 patients | • Semistructured, individual interviews • Interview guide | • Thematic analysis • (+) Data saturation | Four themes regarding patients’ experiences of peripherally inserted central catheter insertion |
• USA | • Discover • Context, values, and background meaning of cultural competency | • (+) Reference • (+) Rationale • | Focused on cultural competence | • Purposive, maximum variation, and network • 20 experts | • Semistructured, individual interviews | • Within-case and across-case analysis • (-) Data saturation | Three themes regarding cultural competency |
• USA | • Explore and describe • Cancer experience | • (+) Reference • (+) Rationale • | NR | • Unspecified • 15 patients | • Longitudinal individual interviews (4 time points) • 40 interviews | • Inductive content analysis • (-) Data saturation | Processes and themes about adolescent identify work and cancer identify work across the illness trajectory |
• Sweden | • Explore • Experiences of giving support to patients during the transition | • (-) Reference • (-) Rationale | Focused on support and transition | • Unspecified (but likely purposeful sampling) • 8 nurses | • Semistructured Individual interviews • Interview guide | • Content analysis • (-) Data saturation | One theme, three main categories, and eight associated categories |
• Taiwan | • Describe • Process of women’s recovery from stillbirth | • (+) Reference • (+) Rationale • | NR | • Purposeful sampling • 21 women | • Individual interview techniques | • Inductive analytic approaches ( ) • (+) Data saturation | Three stages (themes) regarding the recovery process of Taiwanese women with stillbirth |
• Iran | • Describe • Perspectives of causes of medication errors | • (+) Reference • (+) Rationale • | NR | • Purposeful sampling • 24 nursing students | • Focus-group interviews • Observations with notes | • Content analysis • (-) Data saturation | Two main themes about nursing students’ perceptions on causes of medication errors |
• Iran | • Explore • Image of nursing | • (-) Reference • (-) Rationale | NR | • Purposeful sampling • 18 male nurses | • Semistructured individual, interviews • Field notes | • Content analysis • (-) Data saturation | Two main views (themes) on nursing presented with subthemes per view |
• Spain | • Ascertain • Barriers to sexual expression | • (-) Reference • (-) Rationale | NR | • Maximum variation • 100 staff and residents | • Semistructured, individual interview | • Content analysis • (-) Data saturation | 40% of participants without identification of barriers and 60% with seven most cited barriers to sexual expression in the long-term care setting |
• Canada | • Explore • Perceptions of empowerment in academic nursing environments | • (+) Reference • (+) Rationale • Sandelowski ( , ) | Theories of structural power in organizations and psychological empowerment | • Unspecified • 8 clinical instructors | • Semistructured, individual • interview guide | • Unspecified (but used pre-determined concepts) • (+) Data saturation | Structural empowerment and psychological empowerment described using predetermined concepts |
• China | • Investigate • Meaning of life and health experience with chronic illness | • (+) Reference • (+) Rationale • Sandelowski ( , ) | Positive health philosophy | • Purposive, convenience sampling • 11 patients | • Individual interviews • Observations of daily behavior with field notes | • Thematic analysis • (-) Data saturation | Four themes regarding the meaning of life and health when living with chronic illnesses |
Note . NR = not reported
Justification for use of a QD design was evident in close to half (47.3%) of the 55 publications. While most researchers clearly described recruitment strategies (80%) and data collection methods (100%), justification for how the study setting was selected was only identified in 38.2% of the articles and almost 75% of the articles did not include any reason for the choice of data collection methods (e.g., focus-group interviews). In the vast majority (90.9%) of the articles, researchers did not explain their involvement and positionality during the process of recruitment and data collection or during data analysis (63.6%). Ethical standards were reported in greater than 89% of all articles and most articles included an in-depth description of data analysis (83.6%) and development of categories or themes (92.7%). Finally, all researchers clearly stated their findings in relation to research questions/objectives. Researchers of 83.3% of the articles discussed the credibility of their findings (see Table 1 ).
In statements of study objectives and/or questions, the most frequently used verbs were “explore” ( n = 22) and “describe” ( n = 17). Researchers also used “identify” ( n = 3), “understand” ( n = 4), or “investigate” ( n = 2). Most articles focused on participants’ experiences related to certain phenomena ( n = 18), facilitators/challenges/factors/reasons ( n = 14), perceptions about specific care/nursing practice/interventions ( n = 11), and knowledge/attitudes/beliefs ( n = 3).
A total of 30 articles included references for QD. The most frequently cited references ( n = 23) were “Whatever happened to qualitative description?” ( Sandelowski, 2000 ) and “What’s in a name? Qualitative description revisited” ( Sandelowski, 2010 ). Other references cited included “Qualitative description – the poor cousin of health research?” ( Neergaard et al., 2009 ), “Reaching the parts other methods cannot reach: an introduction to qualitative methods in health and health services research” ( Pope & Mays, 1995 ), and general research textbooks ( Polit & Beck, 2004 , 2012 ).
In 26 articles (and not necessarily the same as those citing specific references to QD), researchers provided a rationale for selecting QD. Most researchers chose QD because this approach aims to produce a straight description and comprehensive summary of the phenomenon of interest using participants’ language and staying close to the data (or using low inference).
Authors of two articles distinctly stated a QD design, yet also acknowledged grounded-theory or phenomenological overtones by adopting some techniques from these qualitative traditions ( Michael, O'Callaghan, Baird, Hiscock, & Clayton, 2014 ; Peacock, Hammond-Collins, & Forbes, 2014 ). For example, Michael et al. (2014 , p. 1066) reported:
The research used a qualitative descriptive design with grounded theory overtones ( Sandelowski, 2000 ). We sought to provide a comprehensive summary of participants’ views through theoretical sampling; multiple data sources (focus groups [FGs] and interviews); inductive, cyclic, and constant comparative analysis; and condensation of data into thematic representations ( Corbin & Strauss, 1990 , 2008 ).
Authors of four additional articles included language suggestive of a grounded-theory or phenomenological tradition, e.g., by employing a constant comparison technique or translating themes stated in participants’ language into the primary language of the researchers during data analysis ( Asemani et al., 2014 ; Li, Lee, Chen, Jeng, & Chen, 2014 ; Ma, 2014 ; Soule, 2014 ). Additionally, Li et al. (2014) specifically reported use of a grounded-theory approach.
In most (n = 48) articles, researchers did not specify any theoretical or philosophical framework. Of those articles in which a framework or philosophical stance was included, the authors of five articles described the framework as guiding the development of an interview guide ( Al-Zadjali, Keller, Larkey, & Evans, 2014 ; DeBruyn, Ochoa-Marin, & Semenic, 2014 ; Fantasia, Sutherland, Fontenot, & Ierardi, 2014 ; Ma, 2014 ; Wiens, Babenko-Mould, & Iwasiw, 2014 ). In two articles, data analysis was described as including key concepts of a framework being used as pre-determined codes or categories ( Al-Zadjali et al., 2014 ; Wiens et al., 2014 ). Oosterveld-Vlug et al. (2014) and Zhang, Shan, and Jiang (2014) discussed a conceptual model and underlying philosophy in detail in the background or discussion section, although the model and philosophy were not described as being used in developing interview questions or analyzing data.
In 38 of the 55 articles, researchers reported ‘purposeful sampling’ or some derivation of purposeful sampling such as convenience ( n = 10), maximum variation ( n = 8), snowball ( n = 3), and theoretical sampling ( n = 1). In three instances ( Asemani et al., 2014 ; Chan & Lopez, 2014 ; Soule, 2014 ), multiple sampling strategies were described, for example, a combination of snowball, convenience, and maximum variation sampling. In articles where maximum variation sampling was employed, “variation” referred to seeking diversity in participants’ demographics ( n = 7; e.g., age, gender, and education level), while one article did not include details regarding how their maximum variation sampling strategy was operationalized ( Marcinowicz, Abramowicz, Zarzycka, Abramowicz, & Konstantynowicz, 2014 ). Authors of 17 articles did not specify their sampling techniques.
Sample sizes ranged from 8 to 1,932 with nine studies in the 8–10 participant range and 24 studies in the 11–20 participant range. The participant range of 21–30 and 31–50 was reported in eight articles each. Six studies included more than 50 participants. Two of these articles depicted quite large sample sizes (N=253, Hart & Mareno, 2014 ; N=1,932, Lyndon et al., 2014 ) and the authors of these articles described the use of survey instruments and analysis of responses to open-ended questions. This was in contrast to studies with smaller sample sizes where individual interviews and focus groups were more commonly employed.
In a majority of studies, researchers collected data through individual ( n = 39) and/or focus-group ( n = 14) interviews that were semistructured. Most researchers reported that interviews were audiotaped ( n = 51) and interview guides were described as the primary data collection tool in 29 of the 51 studies. In some cases, researchers also described additional data sources, for example, taking memos or field notes during participant observation sessions or as a way to reflect their thoughts about interviews ( n = 10). Written responses to open-ended questions in survey questionnaires were another type of data source in a small number of studies ( n = 4).
The analysis strategy most commonly used in the QD studies included in this review was qualitative content analysis ( n = 30). Among the studies where this technique was used, most researchers described an inductive approach; researchers of two studies analyzed data both inductively and deductively. Thematic analysis was adopted in 14 studies and the constant comparison technique in 10 studies. In nine studies, researchers employed multiple techniques to analyze data including qualitative content analysis with constant comparison ( Asemani et al., 2014 ; DeBruyn et al., 2014 ; Holland, Christensen, Shone, Kearney, & Kitzman, 2014 ; Li et al., 2014 ) and thematic analysis with constant comparison ( Johansson, Hildingsson, & Fenwick, 2014 ; Oosterveld-Vlug et al., 2014 ). In addition, five teams conducted descriptive statistical analysis using both quantitative and qualitative data and counting the frequencies of codes/themes ( Ewens, Chapman, Tulloch, & Hendricks, 2014 ; Miller, 2014 ; Santos, Sandelowski, & Gualda, 2014 ; Villar, Celdran, Faba, & Serrat, 2014 ) or targeted events through video monitoring ( Martorella, Boitor, Michaud, & Gelinas, 2014 ). Tseng, Chen, and Wang (2014) cited Thorne, Reimer Kirkham, and O’Flynn-Magee (2004)’s interpretive description as the inductive analytic approach. In five out of 55 articles, researchers did not specifically name their analysis strategies, despite including descriptions about procedural aspects of data analysis. Researchers of 20 studies reported that data saturation for their themes was achieved.
Researchers described participants’ experiences of health care, interventions, or illnesses in 18 articles and presented straightforward, focused, detailed descriptions of facilitators, challenges, factors, reasons, and causes in 15 articles. Participants’ perceptions of specific care, interventions, or programs were described in detail in 11 articles. All researchers presented their findings with extensive descriptions including themes or categories. In 25 of 55 articles, figures or tables were also presented to illustrate or summarize the findings. In addition, the authors of three articles summarized, organized, and described their data using key concepts of conceptual models ( Al-Zadjali et al., 2014 ; Oosterveld-Vlug et al., 2014 ; Wiens et al., 2014 ). Martorella et al. (2014) assessed acceptability and feasibility of hand massage therapy and arranged their findings in relation to pre-determined indicators of acceptability and feasibility. In one longitudinal QD study ( Kneck, Fagerberg, Eriksson, & Lundman, 2014 ), the researchers presented the findings as several key patterns of learning for persons living with diabetes; in another longitudinal QD study ( Stegenga & Macpherson, 2014 ), findings were presented as processes and themes regarding patients’ identity work across the cancer trajectory. In another two studies, the researchers described and compared themes or categories from two different perspectives, such as patients and nurses ( Canzan, Heilemann, Saiani, Mortari, & Ambrosi, 2014 ) or parents and children ( Marcinowicz et al., 2014 ). Additionally, Ma (2014) reported themes using both participants’ language and the researcher’s language.
In this systematic review, we examined and reported specific characteristics of methods and findings reported in journal articles self-identified as QD and published during one calendar year. To accomplish this we identified 55 articles that met inclusion criteria, performed a quality appraisal following CASP guidelines, and extracted and analyzed data focusing on QD features. In general, three primary findings emerged. First, despite inconsistencies, most QD publications had the characteristics that were originally observed by Sandelowski (2000) and summarized by other limited available QD literature. Next, there are no clear boundaries in methods used in the QD studies included in this review; in a number of studies, researchers adopted and combined techniques originating from other qualitative traditions to obtain rich data and increase their understanding of the phenomenon under investigation. Finally, justification for how QD was chosen and why it would be an appropriate fit for a particular study is an area in need of increased attention.
In general, the overall characteristics were consistent with design features of QD studies described in the literature ( Neergaard et al., 2009 ; Sandelowski, 2000 , 2010 ; Vaismoradi et al., 2013 ). For example, many authors reported that study objectives were to describe or explore participants’ experiences and factors related to certain phenomena, events, or interventions. In most cases, these authors cited Sandelowski (2000) as a reference for this particular characteristic. It was rare that theoretical or philosophical frameworks were identified, which also is consistent with descriptions of QD. In most studies, researchers used purposeful sampling and its derivative sampling techniques, collected data through interviews, and analyzed data using qualitative content analysis or thematic analysis. Moreover, all researchers presented focused or comprehensive, descriptive summaries of data including themes or categories answering their research questions. These characteristics do not indicate that there are correct ways to do QD studies; rather, they demonstrate how others designed and produced QD studies.
In several studies, researchers combined techniques that originated from other qualitative traditions for sampling, data collection, and analysis. This flexibility or variability, a key feature of recently published QD studies, may indicate that there are no clear boundaries in designing QD studies. Sandelowski (2010) articulated: “in the actual world of research practice, methods bleed into each other; they are so much messier than textbook depictions” (p. 81). Hammersley (2007) also observed:
“We are not so much faced with a set of clearly differentiated qualitative approaches as with a complex landscape of variable practice in which the inhabitants use a range of labels (‘ethnography’, ‘discourse analysis’, ‘life history work’, narrative study’, ……, and so on) in diverse and open-ended ways in order to characterize their orientation, and probably do this somewhat differently across audiences and occasions” (p. 293).
This concept of having no clear boundaries in methods when designing a QD study should enable researchers to obtain rich data and produce a comprehensive summary of data through various data collection and analysis approaches to answer their research questions. For example, using an ethnographical approach (e.g., participant observation) in data collection for a QD study may facilitate an in-depth description of participants’ nonverbal expressions and interactions with others and their environment as well as situations or events in which researchers are interested ( Kawulich, 2005 ). One example found in our review is that Adams et al. (2014) explored family members’ responses to nursing communication strategies for patients in intensive care units (ICUs). In this study, researchers conducted interviews with family members, observed interactions between healthcare providers, patients, and family members in ICUs, attended ICU rounds and family meetings, and took field notes about their observations and reflections. Accordingly, the variability in methods provided Adams and colleagues (2014) with many different aspects of data that were then used to complement participants’ interviews (i.e., data triangulation). Moreover, by using a constant comparison technique in addition to qualitative content analysis or thematic analysis in QD studies, researchers compare each case with others looking for similarities and differences as well as reasoning why differences exist, to generate more general understanding of phenomena of interest ( Thorne, 2000 ). In fact, this constant comparison analysis is compatible with qualitative content analysis and thematic analysis and we found several examples of using this approach in studies we reviewed ( Asemani et al., 2014 ; DeBruyn et al., 2014 ; Holland et al., 2014 ; Johansson et al., 2014 ; Li et al., 2014 ; Oosterveld-Vlug et al., 2014 ).
However, this flexibility or variability in methods of QD studies may cause readers’ as well as researchers’ confusion in designing and often labeling qualitative studies ( Neergaard et al., 2009 ). Especially, it could be difficult for scholars unfamiliar with qualitative studies to differentiate QD studies with “hues, tones, and textures” of qualitative traditions ( Sandelowski, 2000 , p. 337) from grounded theory, phenomenological, and ethnographical research. In fact, the major difference is in the presentation of the findings (or outcomes of qualitative research) ( Neergaard et al., 2009 ; Sandelowski, 2000 ). The final products of grounded theory, phenomenological, and ethnographical research are a generation of a theory, a description of the meaning or essence of people’s lived experience, and an in-depth, narrative description about certain culture, respectively, through researchers’ intensive/deep interpretations, reflections, and/or transformation of data ( Streubert & Carpenter, 2011 ). In contrast, QD studies result in “a rich, straight description” of experiences, perceptions, or events using language from the collected data ( Neergaard et al., 2009 ) through low-inference (or data-near) interpretations during data analysis ( Sandelowski, 2000 , 2010 ). This feature is consistent with our finding regarding presentation of findings: in all QD articles included in this systematic review, the researchers presented focused or comprehensive, descriptive summaries to their research questions.
Finally, an explanation or justification of why a QD approach was chosen or appropriate for the study aims was not found in more than half of studies in the sample. While other qualitative approaches, including grounded theory, phenomenology, ethnography, and narrative analysis, are used to better understand people’s thoughts, behaviors, and situations regarding certain phenomena ( Sullivan-Bolyai et al., 2005 ), as noted above, the results will likely read differently than those for a QD study ( Carter & Little, 2007 ). Therefore, it is important that researchers accurately label and justify their choices of approach, particularly for studies focused on participants’ experiences, which could be addressed with other qualitative traditions. Justifying one’s research epistemology, methodology, and methods allows readers to evaluate these choices for internal consistency, provides context to assist in understanding the findings, and contributes to the transparency of choices, all of which enhance the rigor of the study ( Carter & Little, 2007 ; Wu, Thompson, Aroian, McQuaid, & Deatrick, 2016 ).
Use of the CASP tool drew our attention to the credibility and usefulness of the findings of the QD studies included in this review. Although justification for study design and methods was lacking in many articles, most authors reported techniques of recruitment, data collection, and analysis that appeared. Internal consistencies among study objectives, methods, and findings were achieved in most studies, increasing readers’ confidence that the findings of these studies are credible and useful in understanding under-explored phenomenon of interest.
In summary, our findings support the notion that many scholars employ QD and include a variety of commonly observed characteristics in their study design and subsequent publications. Based on our review, we found that QD as a scholarly approach allows flexibility as research questions and study findings emerge. We encourage authors to provide as many details as possible regarding how QD was chosen for a particular study as well as details regarding methods to facilitate readers’ understanding and evaluation of the study design and rigor. We acknowledge the challenge of strict word limitation with submissions to print journals; potential solutions include collaboration with journal editors and staff to consider creative use of charts or tables, or using more citations and less text in background sections so that methods sections are robust.
Several limitations of this review deserve mention. First, only articles where researchers explicitly stated in the main body of the article that a QD design was employed were included. In contrast, articles labeled as QD in only the title or abstract, or without their research design named were not examined due to the lack of certainty that the researchers actually carried out a QD study. As a result, we may have excluded some studies where a QD design was followed. Second, only one database was searched and therefore we did not identify or describe potential studies following a QD approach that were published in non-PubMed databases. Third, our review is limited by reliance on what was included in the published version of a study. In some cases, this may have been a result of word limits or specific styles imposed by journals, or inconsistent reporting preferences of authors and may have limited our ability to appraise the general adequacy with the CASP tool and examine specific characteristics of these studies.
A systematic review was conducted by examining QD research articles focused on nursing-related phenomena and published in one calendar year. Current patterns include some characteristics of QD studies consistent with the previous observations described in the literature, a focus on the flexibility or variability of methods in QD studies, and a need for increased explanations of why QD was an appropriate label for a particular study. Based on these findings, recommendations include encouragement to authors to provide as many details as possible regarding the methods of their QD study. In this way, readers can thoroughly consider and examine if the methods used were effective and reasonable in producing credible and useful findings.
This work was supported in part by the John A. Hartford Foundation’s National Hartford Centers of Gerontological Nursing Excellence Award Program.
Hyejin Kim is a Ruth L. Kirschstein NRSA Predoctoral Fellow (F31NR015702) and 2013–2015 National Hartford Centers of Gerontological Nursing Excellence Patricia G. Archbold Scholar. Justine Sefcik is a Ruth L. Kirschstein Predoctoral Fellow (F31NR015693) through the National Institutes of Health, National Institute of Nursing Research.
Conflict of Interest Statement
The Authors declare that there is no conflict of interest.
Hyejin Kim, MSN, CRNP, Doctoral Candidate, University of Pennsylvania School of Nursing.
Justine S. Sefcik, MS, RN, Doctoral Candidate, University of Pennsylvania School of Nursing.
Christine Bradway, PhD, CRNP, FAAN, Associate Professor of Gerontological Nursing, University of Pennsylvania School of Nursing.
Sources of data.
A descriptive design is a flexible, exploratory approach to qualitative research. Descriptive design is referred to in the literature by other labels including generic, general, basic, traditional, interpretive, and pragmatic. Descriptive design as an acceptable research design for dissertation and other robust scholarly research has received varying degrees of acceptance within the academic community. However, descriptive design has been gaining momentum since the early 2000’s as a suitable design for studies that do not fall into the more mainstream genres of qualitative research (ie. Case study, phenomenology, ethnography, narrative inquiry and grounded theory). In contrast to other qualitative designs, descriptive design is not aligned to specific methods (for example, bracketing in phenomenology, bounded systems in case study, or constant comparative analysis in grounded theory). Rather, descriptive design “borrows” methods appropriate to the proposed study from other designs.
Arguments supporting the flexible nature of descriptive designs describe it as being preferable to forcing a research approach into a design that is not quite appropriate for the nature of the intended study. However, descriptive design has also been criticized for this mixing of methods as well as for the limited literature describing it. The descriptive design can be the foundation for a rigorous study within the ADE program. Because of the flexibility of the methods used, a descriptive design provides the researcher with the opportunity to choose methods best suited to a practice-based research purpose.
best suited to descriptive design are about the practical consequences and useful applications about an issue or problem. | of descriptive design is to answer exploratory qualitative questions that do not fit into the framework of a more traditional design | can draw on any type of qualitative source including personal accounts (ie. Interviews), documents, or artifacts. |
Benefits | Cautions |
---|---|
A practical design appropriate for practitioners in the field Examines participants’ perceptions or experiences related to a practice problem Appropriate when the purpose of the research does not require intense to sustained interactions with participants Since it draws on or “borrows” methods from other designs, it is a flexible design that is malleable to a variety of research situations. | More than one data source may be needed for triangulation Deep or intense understandings of life experiences or complex phenomenon may suggest an alternative design such as phenomenology or narrative inquiry Without specific, aligned methods, descriptive design novice researchers can unintentionally introduce “method slurring” and produce a study not based in a rigorous philosophical paradigm as are more traditional designs. |
Because of the exploratory nature of descriptive design, the triangulation of multiple sources of data are often used for additional insight into the phenomenon. Sources of data that can be used in descriptive studies are similar to those that may be used in other qualitative designs and include interviews, focus groups, documents, artifacts, and observations.
The following video provides additional considerations for triangulation in qualitative designs including descriptive design: Triangulation: Pairing Thematic and Content Analysis
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Descriptive research design is a powerful tool used by scientists and researchers to gather information about a particular group or phenomenon. This type of research provides a detailed and accurate picture of the characteristics and behaviors of a particular population or subject. By observing and collecting data on a given topic, descriptive research helps researchers gain a deeper understanding of a specific issue and provides valuable insights that can inform future studies.
In this blog, we will explore the definition, characteristics, and common flaws in descriptive research design, and provide tips on how to avoid these pitfalls to produce high-quality results. Whether you are a seasoned researcher or a student just starting, understanding the fundamentals of descriptive research design is essential to conducting successful scientific studies.
Table of Contents
The descriptive research design involves observing and collecting data on a given topic without attempting to infer cause-and-effect relationships. The goal of descriptive research is to provide a comprehensive and accurate picture of the population or phenomenon being studied and to describe the relationships, patterns, and trends that exist within the data.
Descriptive research methods can include surveys, observational studies , and case studies, and the data collected can be qualitative or quantitative . The findings from descriptive research provide valuable insights and inform future research, but do not establish cause-and-effect relationships.
1. understanding of a population or phenomenon.
Descriptive research provides a comprehensive picture of the characteristics and behaviors of a particular population or phenomenon, allowing researchers to gain a deeper understanding of the topic.
The information gathered through descriptive research can serve as a baseline for future research and provide a foundation for further studies.
Descriptive research can provide valuable information and insights into a particular topic, which can inform future research, policy decisions, and programs.
Descriptive research can be used to validate sampling methods and to help researchers determine the best approach for their study.
Descriptive research is often less expensive and less time-consuming than other research methods , making it a cost-effective way to gather information about a particular population or phenomenon.
Descriptive research is straightforward to replicate, making it a reliable way to gather and compare information from multiple sources.
The primary purpose of descriptive research is to describe the characteristics, behaviors, and attributes of a particular population or phenomenon.
Descriptive research studies a particular population or sample that is representative of the larger population being studied. Furthermore, sampling methods can include convenience, stratified, or random sampling.
Descriptive research typically involves the collection of both qualitative and quantitative data through methods such as surveys, observational studies, case studies, or focus groups.
Descriptive research data is analyzed to identify patterns, relationships, and trends within the data. Statistical techniques , such as frequency distributions and descriptive statistics, are commonly used to summarize and describe the data.
Descriptive research is focused on describing and summarizing the characteristics of a particular population or phenomenon. It does not make causal inferences.
Descriptive research is non-experimental, meaning that the researcher does not manipulate variables or control conditions. The researcher simply observes and collects data on the population or phenomenon being studied.
A researcher can conduct descriptive research in the following situations:
1. survey research.
Surveys are a type of descriptive research that involves collecting data through self-administered or interviewer-administered questionnaires. Additionally, they can be administered in-person, by mail, or online, and can collect both qualitative and quantitative data.
Observational research involves observing and collecting data on a particular population or phenomenon without manipulating variables or controlling conditions. It can be conducted in naturalistic settings or controlled laboratory settings.
Case study research is a type of descriptive research that focuses on a single individual, group, or event. It involves collecting detailed information on the subject through a variety of methods, including interviews, observations, and examination of documents.
Focus group research involves bringing together a small group of people to discuss a particular topic or product. Furthermore, the group is usually moderated by a researcher and the discussion is recorded for later analysis.
Ethnographic research involves conducting detailed observations of a particular culture or community. It is often used to gain a deep understanding of the beliefs, behaviors, and practices of a particular group.
1. provides a comprehensive understanding.
Descriptive research provides a comprehensive picture of the characteristics, behaviors, and attributes of a particular population or phenomenon, which can be useful in informing future research and policy decisions.
Descriptive research is non-invasive and does not manipulate variables or control conditions, making it a suitable method for sensitive or ethical concerns.
Descriptive research allows for a wide range of data collection methods , including surveys, observational studies, case studies, and focus groups, making it a flexible and versatile research method.
Descriptive research is often less expensive and less time-consuming than other research methods. Moreover, it gives a cost-effective option to many researchers.
Descriptive research is easy to replicate, making it a reliable way to gather and compare information from multiple sources.
The insights gained from a descriptive research can inform future research and inform policy decisions and programs.
1. limited scope.
Descriptive research only provides a snapshot of the current situation and cannot establish cause-and-effect relationships.
Descriptive research relies on existing data, which may not always be comprehensive or accurate.
Researchers have no control over the variables in descriptive research, which can limit the conclusions that can be drawn.
The researcher’s own biases and preconceptions can influence the interpretation of the data.
Descriptive research findings may not be applicable to other populations or situations.
Descriptive research provides a surface-level understanding of a phenomenon, rather than a deep understanding.
Descriptive research often requires a large amount of data collection and analysis, which can be time-consuming and resource-intensive.
A clearly defined research question is the foundation of any research study, and it is important to ensure that the question is both specific and relevant to the topic being studied.
Choosing the appropriate research design for a study is crucial to the success of the study. Moreover, researchers should choose a design that best fits the research question and the type of data needed to answer it.
Selecting a representative sample is important to ensure that the findings of the study are generalizable to the population being studied. Researchers should use a sampling method that provides a random and representative sample of the population.
Using valid and reliable data collection methods is important to ensure that the data collected is accurate and can be used to answer the research question. Researchers should choose methods that are appropriate for the study and that can be administered consistently and systematically.
Bias can significantly impact the validity and reliability of research findings. Furthermore, it is important to minimize bias in all aspects of the study, from the selection of participants to the analysis of data.
An adequate sample size is important to ensure that the results of the study are statistically significant and can be generalized to the population being studied.
The appropriate data analysis technique depends on the type of data collected and the research question being asked. Researchers should choose techniques that are appropriate for the data and the question being asked.
Have you worked on descriptive research designs? How was your experience creating a descriptive design? What challenges did you face? Do write to us or leave a comment below and share your insights on descriptive research designs!
extremely very educative
Indeed very educative and useful. Well explained. Thank you
Simple,easy to understand
Excellent and easy to understand queries and questions get answered easily. Its rather clear than any confusion. Thanks a million Shritika Sirisilla.
Easy to understand. Well written , educative and informative
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Methodology
Published on June 7, 2021 by Shona McCombes . Revised on November 20, 2023 by Pritha Bhandari.
A research design is a strategy for answering your research question using empirical data. Creating a research design means making decisions about:
A well-planned research design helps ensure that your methods match your research objectives and that you use the right kind of analysis for your data.
Step 1: consider your aims and approach, step 2: choose a type of research design, step 3: identify your population and sampling method, step 4: choose your data collection methods, step 5: plan your data collection procedures, step 6: decide on your data analysis strategies, other interesting articles, frequently asked questions about research design.
Before you can start designing your research, you should already have a clear idea of the research question you want to investigate.
There are many different ways you could go about answering this question. Your research design choices should be driven by your aims and priorities—start by thinking carefully about what you want to achieve.
The first choice you need to make is whether you’ll take a qualitative or quantitative approach.
Qualitative approach | Quantitative approach |
---|---|
and describe frequencies, averages, and correlations about relationships between variables |
Qualitative research designs tend to be more flexible and inductive , allowing you to adjust your approach based on what you find throughout the research process.
Quantitative research designs tend to be more fixed and deductive , with variables and hypotheses clearly defined in advance of data collection.
It’s also possible to use a mixed-methods design that integrates aspects of both approaches. By combining qualitative and quantitative insights, you can gain a more complete picture of the problem you’re studying and strengthen the credibility of your conclusions.
As well as scientific considerations, you need to think practically when designing your research. If your research involves people or animals, you also need to consider research ethics .
At each stage of the research design process, make sure that your choices are practically feasible.
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Within both qualitative and quantitative approaches, there are several types of research design to choose from. Each type provides a framework for the overall shape of your research.
Quantitative designs can be split into four main types.
Type of design | Purpose and characteristics |
---|---|
Experimental | relationships effect on a |
Quasi-experimental | ) |
Correlational | |
Descriptive |
With descriptive and correlational designs, you can get a clear picture of characteristics, trends and relationships as they exist in the real world. However, you can’t draw conclusions about cause and effect (because correlation doesn’t imply causation ).
Experiments are the strongest way to test cause-and-effect relationships without the risk of other variables influencing the results. However, their controlled conditions may not always reflect how things work in the real world. They’re often also more difficult and expensive to implement.
Qualitative designs are less strictly defined. This approach is about gaining a rich, detailed understanding of a specific context or phenomenon, and you can often be more creative and flexible in designing your research.
The table below shows some common types of qualitative design. They often have similar approaches in terms of data collection, but focus on different aspects when analyzing the data.
Type of design | Purpose and characteristics |
---|---|
Grounded theory | |
Phenomenology |
Your research design should clearly define who or what your research will focus on, and how you’ll go about choosing your participants or subjects.
In research, a population is the entire group that you want to draw conclusions about, while a sample is the smaller group of individuals you’ll actually collect data from.
A population can be made up of anything you want to study—plants, animals, organizations, texts, countries, etc. In the social sciences, it most often refers to a group of people.
For example, will you focus on people from a specific demographic, region or background? Are you interested in people with a certain job or medical condition, or users of a particular product?
The more precisely you define your population, the easier it will be to gather a representative sample.
Even with a narrowly defined population, it’s rarely possible to collect data from every individual. Instead, you’ll collect data from a sample.
To select a sample, there are two main approaches: probability sampling and non-probability sampling . The sampling method you use affects how confidently you can generalize your results to the population as a whole.
Probability sampling | Non-probability sampling |
---|---|
Probability sampling is the most statistically valid option, but it’s often difficult to achieve unless you’re dealing with a very small and accessible population.
For practical reasons, many studies use non-probability sampling, but it’s important to be aware of the limitations and carefully consider potential biases. You should always make an effort to gather a sample that’s as representative as possible of the population.
In some types of qualitative designs, sampling may not be relevant.
For example, in an ethnography or a case study , your aim is to deeply understand a specific context, not to generalize to a population. Instead of sampling, you may simply aim to collect as much data as possible about the context you are studying.
In these types of design, you still have to carefully consider your choice of case or community. You should have a clear rationale for why this particular case is suitable for answering your research question .
For example, you might choose a case study that reveals an unusual or neglected aspect of your research problem, or you might choose several very similar or very different cases in order to compare them.
Data collection methods are ways of directly measuring variables and gathering information. They allow you to gain first-hand knowledge and original insights into your research problem.
You can choose just one data collection method, or use several methods in the same study.
Surveys allow you to collect data about opinions, behaviors, experiences, and characteristics by asking people directly. There are two main survey methods to choose from: questionnaires and interviews .
Questionnaires | Interviews |
---|---|
) |
Observational studies allow you to collect data unobtrusively, observing characteristics, behaviors or social interactions without relying on self-reporting.
Observations may be conducted in real time, taking notes as you observe, or you might make audiovisual recordings for later analysis. They can be qualitative or quantitative.
Quantitative observation | |
---|---|
There are many other ways you might collect data depending on your field and topic.
Field | Examples of data collection methods |
---|---|
Media & communication | Collecting a sample of texts (e.g., speeches, articles, or social media posts) for data on cultural norms and narratives |
Psychology | Using technologies like neuroimaging, eye-tracking, or computer-based tasks to collect data on things like attention, emotional response, or reaction time |
Education | Using tests or assignments to collect data on knowledge and skills |
Physical sciences | Using scientific instruments to collect data on things like weight, blood pressure, or chemical composition |
If you’re not sure which methods will work best for your research design, try reading some papers in your field to see what kinds of data collection methods they used.
If you don’t have the time or resources to collect data from the population you’re interested in, you can also choose to use secondary data that other researchers already collected—for example, datasets from government surveys or previous studies on your topic.
With this raw data, you can do your own analysis to answer new research questions that weren’t addressed by the original study.
Using secondary data can expand the scope of your research, as you may be able to access much larger and more varied samples than you could collect yourself.
However, it also means you don’t have any control over which variables to measure or how to measure them, so the conclusions you can draw may be limited.
As well as deciding on your methods, you need to plan exactly how you’ll use these methods to collect data that’s consistent, accurate, and unbiased.
Planning systematic procedures is especially important in quantitative research, where you need to precisely define your variables and ensure your measurements are high in reliability and validity.
Some variables, like height or age, are easily measured. But often you’ll be dealing with more abstract concepts, like satisfaction, anxiety, or competence. Operationalization means turning these fuzzy ideas into measurable indicators.
If you’re using observations , which events or actions will you count?
If you’re using surveys , which questions will you ask and what range of responses will be offered?
You may also choose to use or adapt existing materials designed to measure the concept you’re interested in—for example, questionnaires or inventories whose reliability and validity has already been established.
Reliability means your results can be consistently reproduced, while validity means that you’re actually measuring the concept you’re interested in.
Reliability | Validity |
---|---|
) ) |
For valid and reliable results, your measurement materials should be thoroughly researched and carefully designed. Plan your procedures to make sure you carry out the same steps in the same way for each participant.
If you’re developing a new questionnaire or other instrument to measure a specific concept, running a pilot study allows you to check its validity and reliability in advance.
As well as choosing an appropriate sampling method , you need a concrete plan for how you’ll actually contact and recruit your selected sample.
That means making decisions about things like:
If you’re using a probability sampling method , it’s important that everyone who is randomly selected actually participates in the study. How will you ensure a high response rate?
If you’re using a non-probability method , how will you avoid research bias and ensure a representative sample?
It’s also important to create a data management plan for organizing and storing your data.
Will you need to transcribe interviews or perform data entry for observations? You should anonymize and safeguard any sensitive data, and make sure it’s backed up regularly.
Keeping your data well-organized will save time when it comes to analyzing it. It can also help other researchers validate and add to your findings (high replicability ).
On its own, raw data can’t answer your research question. The last step of designing your research is planning how you’ll analyze the data.
In quantitative research, you’ll most likely use some form of statistical analysis . With statistics, you can summarize your sample data, make estimates, and test hypotheses.
Using descriptive statistics , you can summarize your sample data in terms of:
The specific calculations you can do depend on the level of measurement of your variables.
Using inferential statistics , you can:
Regression and correlation tests look for associations between two or more variables, while comparison tests (such as t tests and ANOVAs ) look for differences in the outcomes of different groups.
Your choice of statistical test depends on various aspects of your research design, including the types of variables you’re dealing with and the distribution of your data.
In qualitative research, your data will usually be very dense with information and ideas. Instead of summing it up in numbers, you’ll need to comb through the data in detail, interpret its meanings, identify patterns, and extract the parts that are most relevant to your research question.
Two of the most common approaches to doing this are thematic analysis and discourse analysis .
Approach | Characteristics |
---|---|
Thematic analysis | |
Discourse analysis |
There are many other ways of analyzing qualitative data depending on the aims of your research. To get a sense of potential approaches, try reading some qualitative research papers in your field.
If you want to know more about the research process , methodology , research bias , or statistics , make sure to check out some of our other articles with explanations and examples.
Statistics
Research bias
A research design is a strategy for answering your research question . It defines your overall approach and determines how you will collect and analyze data.
A well-planned research design helps ensure that your methods match your research aims, that you collect high-quality data, and that you use the right kind of analysis to answer your questions, utilizing credible sources . This allows you to draw valid , trustworthy conclusions.
Quantitative research designs can be divided into two main categories:
Qualitative research designs tend to be more flexible. Common types of qualitative design include case study , ethnography , and grounded theory designs.
The priorities of a research design can vary depending on the field, but you usually have to specify:
A sample is a subset of individuals from a larger population . Sampling means selecting the group that you will actually collect data from in your research. For example, if you are researching the opinions of students in your university, you could survey a sample of 100 students.
In statistics, sampling allows you to test a hypothesis about the characteristics of a population.
Operationalization means turning abstract conceptual ideas into measurable observations.
For example, the concept of social anxiety isn’t directly observable, but it can be operationally defined in terms of self-rating scores, behavioral avoidance of crowded places, or physical anxiety symptoms in social situations.
Before collecting data , it’s important to consider how you will operationalize the variables that you want to measure.
A research project is an academic, scientific, or professional undertaking to answer a research question . Research projects can take many forms, such as qualitative or quantitative , descriptive , longitudinal , experimental , or correlational . What kind of research approach you choose will depend on your topic.
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This chapter presents two of the most prominent approaches to the design of descriptive research in music education. Simply creating depictions of music teaching and learning experiences that are organized and illustrative of the variation that can exist in any given setting is a worthwhile scientific endeavor in and of itself. Descriptive research is most typically an exploration of what is, what exists, and/or the status of any given topic of interest. The first section deals with basic steps in observational research designs, and the second section outlines critical features of survey designs. These fundamental research design options are excellent entry points for emerging scholars and when employed imaginatively can yield many benefits for the profession.
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The design of a research study can be of two broad types—observational or interventional. In interventional studies, at least one variable can be controlled by the researcher. For example, drug trials that examine the efficacy of novel medicines are interventional studies. Observational studies, on the other hand, simply examine and describe uncontrollable variables¹ .
Descriptive design is one of the simplest forms of observational study design. It can either quantify the distribution of certain variables (quantitative descriptive research) or simply report the qualities of these variables without quantifying them (qualitative descriptive research).
It is useful when you wish to examine the occurrence of a phenomenon, delineate trends or patterns within the phenomenon, or describe the relationship between variables. As such, descriptive design is great for¹ :
Descriptive research plays a crucial role in improving our lives. Surveys help create better policies and cross-sectional studies help us understand problems affecting different populations including diseases. Used in the right context, descriptive research can advance knowledge and inform decision making¹ .
We, at Elsevier Language Services, understand the value of your descriptive research, as well as the importance of communicating it correctly. If you have a manuscript based on a descriptive study, our experienced editors can help improve its myriad aspects. By improving the logical flow, tone, and accuracy of your writing, we ensure that your descriptive research gets published in a top tier journal and makes maximum impact in academia and beyond. Contact us for a comprehensive list of services!
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Descriptive research can be explained as a statement of affairs as they are at present with the researcher having no control over variable. Moreover, “descriptive studies may be characterised as simply the attempt to determine, describe or identify what is, while analytical research attempts to establish why it is that way or how it came to be” [1] . Three main purposes of descriptive studies can be explained as describing, explaining and validating research findings. This type of research is popular with non-quantified topic.
Descriptive research is “aimed at casting light on current issues or problems through a process of data collection that enables them to describe the situation more completely than was possible without employing this method.” [2] To put it simply, descriptive studies are used to describe various aspects of the phenomenon. In its popular format, descriptive research is used to describe characteristics and/or behaviour of sample population. It is an effective method to get information that can be used to develop hypotheses and propose associations.
Importantly, these types of studies do not focus on reasons for the occurrence of the phenomenon. In other words, descriptive research focuses on the question “What?”, but it is not concerned with the question “Why?”
Descriptive studies have the following characteristics:
1. While descriptive research can employ a number of variables, only one variable is required to conduct a descriptive study.
2. Descriptive studies are closely associated with observational studies, but they are not limited with observation data collection method. Case studies and surveys can also be specified as popular data collection methods used with descriptive studies.
3. Findings of descriptive researches create a scope for further research. When a descriptive study answers to the question “What?”, a further research can be conducted to find an answer to “Why?” question.
Research questions in descriptive studies typically start with ‘What is…”. Examples of research questions in descriptive studies may include the following:
My e-book, The Ultimate Guide to Writing a Dissertation in Business Studies: a step by step assistance contains discussions of theory and application of research designs. The e-book also explains all stages of the research process starting from the selection of the research area to writing personal reflection. Important elements of dissertations such as research philosophy , research approach , methods of data collection , data analysis and sampling are explained in this e-book in simple words.
John Dudovskiy
[1] Ethridge, D.E. (2004) “Research Methodology in Applied Economics” John Wiley & Sons, p.24
[2] Fox, W. & Bayat, M.S. (2007) “A Guide to Managing Research” Juta Publications, p.45
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Descriptive research aims to accurately and systematically describe a population, situation or phenomenon. It can answer what, where, when and how questions, but not why questions. A descriptive research design can use a wide variety of research methods to investigate one or more variables. Unlike in experimental research, the researcher does ...
Descriptive research design is a type of research methodology that aims to describe or document the characteristics, behaviors, attitudes, opinions, or perceptions of a group or population being studied.
Descriptive research design is employed across diverse fields, and its primary objective is to systematically observe and document all variables and conditions influencing the phenomenon. Read this comprehensive article to know what descriptive research is and the different methods, types and examples.
A descriptive study design is a research method that observes and describes the behaviour of subjects from a scientific viewpoint with regard to variables of a situation (Sharma, 2019). Here, the ...
A descriptive research design can use a wide variety of research methods to investigate one or more variables. Unlike in experimental research, the researcher does not control or manipulate any of the variables, but only observes and measures them.
Qualitative descriptive designs are common in nursing and healthcare research due to their inherent simplicity, flexibility and utility in diverse healthcare contexts. However, the application of descriptive research is sometimes critiqued in terms of scientific rigor. Inconsistency in decision making within the research process coupled with a ...
The inclusion criterion for this review was data-based, nursing-related, research articles in which authors used the terms QD, qualitative descriptive study, or qualitative descriptive design in their titles or abstracts as well as in the main texts of the publication.
A descriptive design is a flexible, exploratory approach to qualitative research. Descriptive design is referred to in the literature by other labels including generic, general, basic, traditional, interpretive, and pragmatic. Descriptive design as an acceptable research design for dissertation and other robust scholarly research has received ...
Descriptive research design is a powerful tool used by researchers to gather information about a particular group or phenomenon.
New York, NY, Lippincott, 1991. Dempsey PA, Dempsey AD: Nursing Research with Basic Statistical Applications (ed 3). Boston, MA, Jones and Bartlett, 1992. Beck S.: Designing a study, in Mateo MA, Kirchhoff KT (eds): Conducting and Using Nursing Research in the Clinical Setting.
A research design is a strategy for answering your research question using empirical data. Creating a research design means making decisions about: Your overall research objectives and approach. Whether you'll rely on primary research or secondary research. Your sampling methods or criteria for selecting subjects. Your data collection methods.
A descriptive research design was used to observe and describe the characteristics of the sample without manipulating any of the variables (Siedlecki, 2020), which allowed for data collection ...
Abstract This chapter presents research designs for descriptive and correlational quantitative research. Descriptive research designs are used to address the question "What is x?" Correlational research designs are used to address the question "How are things related?" In contrast to some experimental research designs, in these design types the primary area of interest under ...
Comparing the Five Approaches All five approaches have in common the general process of research that begins with a research problem and proceeds to the questions, the data, the data analysis and interpretations, and the research report. Qualitative researchers have found it helpful to see at this point an overall sketch for each of the five approaches. From these sketches of the five ...
Descriptive research is most typically an exploration of what is, what exists, and/or the status of any given topic of interest. The first section deals with basic steps in observational research designs, and the second section outlines critical features of survey designs.
As such, descriptive design is great for¹: Case reports and surveys: Descriptive research is a valuable tool for in-depth examination of uncommon diseases and other unique occurrences. In the context of surveys, it can help researchers meticulously analyse extensive datasets. A survey conducted to measure the changes in the levels of customer ...
Descriptive research is "aimed at casting light on current issues or problems through a process of data collection that enables them to describe the situation more completely than was possible without employing this method." [2] To put it simply, descriptive studies are used to describe various aspects of the phenomenon. In its popular format, descriptive research is used to describe ...
Descriptive science is a category of science that involves descriptive research; that is, observing, recording, describing, and classifying phenomena. Descriptive research is sometimes contrasted with hypothesis-driven research, which is focused on testing a particular hypothesis by means of experimentation.
Abstract Qualitative description (QD) offers an accessible entry point for master's-level students and research trainees embarking on a qualitative research learning journey, emphasizing direct, rich descriptions of experiences and events without extensive theorization or abstraction. This method, rooted in naturalistic inquiry, allows for flexibility in theoretical approaches, sampling ...
Background Qualitative descriptive designs are common in nursing and healthcare research due to their inherent simplicity, flexibility and utility in diverse healthcare contexts. However, the application of descriptive research is sometimes critiqued in terms of scientific rigor. Inconsistency in decision making within the research process coupled with a lack of transparency has created issues ...
Descriptive method is a research method that tries to describe phenomenon, occurrence, event, that happens in the present. Creswell (1994) said the descriptive method of research is to gather information about present existing condition. Creswell (2012, p. 274) explained the purpose of descriptive method is to find a detailed explanation and description about the object of the research ...
The design of a study defines the study type (descriptive, correlational, semi-experimental, experimental, review, meta-analytic) and sub-type (e.g., descriptive-longitudinal case study), research ...
The essence of research design is to translate a research problem into data for analysis so as to provide relevant answers to research questions at a minimum cost.