Qualitative Case Study Methodology: Yin, Merriam, and Stake

Introduction

The qualitative case study serves as a research methodology that enables the exploration of a specific phenomenon within a particular context, utilizing various data sources. This approach examines the phenomenon from multiple perspectives, unveiling its diverse facets (Baxter & Jack, 2008). By investigating real-time occurrences within their natural contexts, case studies acknowledge the influence of the surrounding circumstances (Kaarbo & Beasley, 1999).

A case study is a commonly employed methodology within qualitative research (Yazan, 2015). Nevertheless, due to the lack of well-structured and comprehensive protocols, it has not established itself as a fully recognized social science research strategy (Yin, 2002). Consequently, novice researchers who intend to utilize this methodology often face confusion regarding the essence of a case study and its distinction from other qualitative research methods (Merriam, 1998).

While a considerable amount of literature exists on the theory and application of qualitative research (see Creswell, 2013; Marshall & Rossman, 2014; Merriam & Tisdell, 2015), these studies generally provide only a superficial overview of case study research (Hancock & Algozzine, 2016).

Despite being widely employed in academic research, researchers still lack consensus regarding the planning and implementing of case studies, hindering their complete development (Yazan, 2015). However, a few studies on case study methodology (Hancock & Algozzine, 2016; Yin, 2017) have attempted to synthesize details and offer a comprehensive process and practical guidelines for conducting case study research.

Academic researchers often rely on the procedures proposed by influential authors such as Robert K. Yin, Sharan Merriam, and Robert E. Stake when conducting case study research (Creswell, Hanson, Clark Plano, & Morales, 2007). These methodologists significantly impact the decision-making process of researchers when it comes to case study design (Yazan, 2015).

Prominent books on case study methodology (Merriam, 2002; Stake, 1995; Yin, 2011) provide valuable insights into case study research. However, they tend to prioritize theory over practice, offering beginners limited guidance in conducting case studies (Hancock & Algozzine, 2016).

In healthcare research, the utilization of the qualitative case study (QCS) approach has seen a rise over the past decade (Anthony & Jack, 2009). Researchers frequently cite the works of Robert Yin and Robert Stake to support their chosen methodology. However, Yin (2009) and Stake (2005) hold differing philosophical orientations, and their work is often applied and cited without considering these philosophical perspectives, thereby undermining the credibility of the research conducted. Yin's work, rooted in a postpositivist perspective, has been more commonly represented, whereas Stake's constructivist approach has received less attention (Rashid et al., 2019).

Qualitative Research Design: Case Study

Creswell (2013) defines the QCS approach as an exploration of a "bounded system" or case over time through comprehensive data collection involving multiple sources of information, each employing its own sampling, data collection, and analysis strategies. The outcome is a case description consisting of case-based themes. The QCS approach is often regarded as a contextually based tradition, where it becomes challenging to separate the case from the context in which it unfolds. Creswell argues that the type of case study conducted depends on the scale of the bounded case or the purpose of the analysis (Rashid et al., 2019).

Researchers across various disciplines have utilized the QCS approach to enhance understanding of individuals, groups, processes, and relationships (Yin, 2009). As contended by Stake (2005), Merriam (1988, as cited in Boblin et al., 2013), and Yin (2009), the case study approach enables a holistic comprehension of a phenomenon within real-life contexts, as perceived by those involved. Stake describes the case study approach as a means of capturing the intricacies of a phenomenon. Case studies are particularly suited to research that explores "how" and "why" questions (Stake, 2005; Yin, 2003).

The Yin and Stake Perspective

The viewpoints of researchers regarding the nature and generation of knowledge—or their epistemological inclination—fundamentally shape the inquiry projects they conceive and undertake. This orientation influences every aspect of the research process, from selecting the investigated phenomenon to the final report's composition. According to Merriam, "Research ultimately aims to produce knowledge about the world, specifically the realm of educational practice" (Merriam, 1998, p. 3, as cited in Boblin et al., 2013). As researchers and methodologists, Yin, Merriam, and Stake possess epistemic commitments that influence their perspectives on case study methodology. They also guide novice researchers on approaching case study methods in their research endeavors. These commitments are explicitly or implicitly evident in their seminal texts on case study research, shaping their conception of the case study. Therefore, before delving into the analysis below, it is useful to draw upon Yin, Merriam, and Stake's particular epistemological orientations, which inform the subsequent discussion.

Yin's perspective on the case study demonstrates a leaning toward positivism. Crotty (1998) identifies three fundamental notions of positivistic research orientation: objectivity, validity, and generalizability. If researchers claim that the findings of their proposed study will be "facts, or at least as close to fact as their research has enabled them to reach," it suggests that their research is underpinned by the positivist philosophical tradition (Crotty, 1998, p. 41). Although Yin does not explicitly articulate his epistemological orientation in his text, his approach to case study and research, as well as the aspects he emphasizes, strongly indicate a philosophical stance aligned with positivism. For instance, from a Yinian perspective, a case study researcher is expected to "maximize four conditions related to design quality: construct validity, internal validity, external validity, and reliability. How investigators deal with these aspects of quality control" (Yin, 2002, p. 19) is crucial at every step of the case study research. Yin consistently suggests that emerging researchers should keep these four "yardsticks" in mind throughout their inquiry process to ensure the quality of their investigation. Hence, based on Crotty's understanding, Yin's perspective on case study research can be seen as grounded in positivism.

Furthermore, Yin's perspective on the dichotomy between quantitative and qualitative research traditions may explain why he avoids explicitly addressing his philosophical orientation. He rejects the notion of qualitative and quantitative orientations being fundamentally distinct due to irreconcilable philosophical disparities, stating that regardless of personal preference for qualitative or quantitative research, it is crucial to recognize a significant and fundamental overlap between the two approaches (Yin, 2002, p. 15). Yin focuses on the shared elements of these two research traditions and pragmatically emphasizes the common tools that can be functional and instrumental in the design and methods of the case study he proposes, thereby blurring the boundaries between quantitative and qualitative case study methods.

In contrast to Yin, who appears to evade making statements about his epistemic commitments or the preferred epistemology guiding case study methodology, Stake dedicates a significant portion of a chapter in his text to explaining the epistemological tradition that qualitative case study researchers should adhere to. He argues that "how case study researchers should contribute to reader experience depends on their notions of knowledge and reality" (Stake, 1995, p. 100). From a Stakian perspective, constructivism and existentialism (non-determinism) should be the epistemologies that shape and inform qualitative case study research, as according to the majority of modern qualitative researchers, it is widely accepted that knowledge is not something that is discovered, but rather something that is actively constructed (Stake, 1995, p. 99). Therefore, Stake primarily envisions qualitative case study researchers as interpreters and gatherers of interpretations, requiring them to report their rendering or construction of the constructed reality or knowledge gathered through their investigation. From Stake's perspective, qualitative researchers should anticipate another level of reality or knowledge construction to occur on the part of the readers of their report, in addition to the two levels previously mentioned.

This deduction is also relevant to Stake's assertion that in the case at hand, it is important to acknowledge that numerous perspectives or viewpoints should be included and accounted for. However, it is impossible to establish the ultimate, indisputable perspective, as different views may be subject to debate and lack a clear hierarchy (Stake, 1995, p. 108).

Conclusion

Prospective researchers often search for a research methodology once they have determined their research question(s) and chosen their phenomenon of interest. If they opt for a case study approach, they are confronted with many approaches and a contested terrain characterized by various perspectives. This paper aims to assist such researchers in three ways that set it apart from generic case study texts.

First, novice case study researchers will comprehend the relationship between their epistemic orientations and the case study approaches they lean toward. In other words, they will recognize that their research-related decisions reflect their emerging identities as educational researchers. Second, this paper presents the perspective of another novice case study researcher who has undergone similar processes of designing and conducting case study research, which provides valuable insight for those about to embark on the same journey. Third, by being exposed to various case study approaches in this paper, emerging researchers can selectively combine elements—such as diverse research techniques and strategies—from each approach that best serve and support their research design.

Therefore, this comparative analysis of three different renditions of case study methods can serve as a helpful quick reference for emerging researchers during the conceptualization and design of their research projects.

References

Anthony, S., & Jack, S. (2009). Qualitative case study methodology in nursing research: An integrative review. Journal of Advanced Nursing, 65(6), 1171–1181.

Baxter, P., & Jack, S. (2008). Qualitative case study methodology: Study design and implementation for novice researchers. The Qualitative Report, 13(4), 544–559.

Boblin, S. L., Ireland, S., Kirkpatrick, H., & Robertson, K. (2013). Using Stake's qualitative case study approach to explore implementation of evidence-based practice. Qualitative Health Research, 23(9), 1267–1275.

Boyne, G. A. (2004). Explaining public service performance: Does management matter? Public Policy and Administration, 19(4), 100–117. doi:10.1177/095207670401900406

Creswell, J. W. (2013). Qualitative inquiry and research design: Choosing among five approaches (3rd ed.). Sage.

Creswell, J. W., Hanson, W. E., Clark Plano, V. L., & Morales, A. (2007). Qualitative research designs: Selection and implementation. The Counseling Psychologist, 35(2), 236–264.

Crotty, M. (1998). The foundations of social research. SAGE Publications.

Fleury, S., Bloch, R., Bravo, R., & Bicudo, V. (2003). Análise do perfil dos artigos publicados na Revista de Administração Pública. EAESP/FGV.

Gill, J., & Meier, K. (2000). Public administration research and practice: A methodological manifesto. Journal of Public Administration Research and Theory, 10(1), 157–199.

Gondim, S., Sá, M., Melo, L., Barbosa, S., Vasconcellos, C., & Gomes, S. (2005). Da descrição do caso à construção da teoria ou da teoria à exemplificação do caso? Uma das encruzilhadas da produção do conhecimento em administração e áreas afins. Organizações & Sociedade, 12(35), 47–68.

Guerra, M., Gomes, A. de O., & Filho, A. I. da S. (n.d.). Case study in public administration: A critical review of Brazilian scientific production. RAC, Rio de Janeiro, 19(2), art. 6, pp. 270–289.

Hancock, D. R., & Algozzine, B. (2016). Doing case study research: A practical guide for beginning researchers. Teachers College Press.

Hocayen-da-Silva, A. J., Rossoni, L., & Ferreira, I., Jr. (2008). Administração pública e gestão social: A produção científica brasileira entre 2000 e 2005. Revista de Administração Pública, 42(4), 655–680. doi:10.1590/S0034-76122008000400002

Kaarbo, J., & Beasley, R. K. (1999). A practical guide to the comparative case study method in political psychology. Political Psychology, 20, 369–391.

Kettl, D. F. (2000). Public administration at the millennium: The state of the field. Journal of Public Administration Research and Theory, 10(1), 7–34.

Marshall, C., & Rossman, G. B. (2014). Designing qualitative research (6th ed.). Sage.

Merriam, S. B. (1988). Case study research in education: A qualitative approach. Jossey-Bass.

Merriam, S. B. (1998). Qualitative research and case study applications in education. Jossey-Bass.

Merriam, S. B. (2002). Qualitative research in practice: Examples for discussion and analysis. Jossey-Bass.

Merriam, S. B., & Tisdell, E. J. (2015). Qualitative research: A guide to design and implementation. John Wiley.

Ongaro, E. (2008). Introduction: The reform of public management in France, Greece, Italy, Portugal, and Spain. International Journal of Public Sector Management, 21(2), 101–117.

Parlett, M., & Hamilton, D. (1976). Evaluation as illumination: A new approach to the study of innovative programmes. In G. Glass (Ed.), Evaluation studies review annual (Vol. 1, pp. 140–157). SAGE Publications.

Rashid, Y., Rashid, A., Warraich, M. A., Sabir, S. S., & Waseem, A. (2019). Case study method: A step-by-step guide for business researchers. International Journal of Qualitative Methods, 18, 1–13.

Roesch, S. (2003). Quem responde pelo desempenho limitado da produção científica em administração no Brasil? Organizações & Sociedade, 10(28), 165–167.

Stake, R. E. (1994). Case studies. In N. K. Denzin & Y. S. Lincoln (Eds.), Handbook of qualitative research (pp. 236–247). Sage.

Stake, R. E. (1995). The art of case study research. Sage.

Stake, R. E. (2005). Qualitative case studies. In N. K. Denzin & Y. S. Lincoln (Eds.), The SAGE handbook of qualitative research (3rd ed., pp. 443–466). Sage.

Yazan, B. (2015). Three approaches to case study methods in education: Yin, Merriam, and Stake. The Qualitative Report, 20(2), 134–152.

Yin, R. K. (2002). Case study research: Design and methods. SAGE Publications.

Yin, R. K. (2003). Case study research: Design and methods (3rd ed.). Sage.

Yin, R. K. (2009). Case study research: Design and methods (4th ed.). Sage.

Yin, R. K. (2009). How to do better case studies. The SAGE Handbook of Applied Social Research Methods, 2, 254–282.

Yin, R. K. (2011). Applications of case study research. Sage.

Yin, R. K. (2017). Case study research and applications: Design and methods. Sage.