For example, the case study can be exploratory (create new knowledge), constructive (solve some problem), or confirmatory (test a hypothesis with empirical evidence).
The case study can also use either a primary (the researcher collects the data) or secondary (the researcher uses someone else’s data) approach.
This work is to present the case study as a research approach, showing that its characterization is not an easy task, due mainly to its many different approaches and applications.
It highlights its increasing importance as a research tool, exploring its origins, meanings and delineation as an investigation methodology.
Some of the criticism against case studies in this area relate to single-case studies.
However, that criticism is directed at the statistical and not the analytical generalization that is the basis of case studies.With this procedure it is assumed that one can acquire knowledge of the phenomenon studied from intense exploration of a single case.Besides the medical and psychological, it became a major methods of qualitative research in human and social sciences.Yin proposed three remedies to counteract this: using multiple sources of evidence, establishing a chain of evidence, and having a draft case study report reviewed by key informants.Internal validity is a concern only in causal (explanatory) cases.Disclaimer: This work has been submitted by a student.This is not an example of the work produced by our Essay Writing Service.And, whether qualitative or quantitative, case studies typically relate to single projects, or, at best, small clusters of projects, such that their results usually cannot be generalized to the entire portfolio of projects.Noting that distinguished scholars frequently use case study as a method of analysis, Yin, in his landmark book on case studies, asks, “If the case study method has serious weaknesses, why do investigators continue to use it?Using a “storytelling” approach, the evaluator may present the genesis of ideas, explore what happened and why, give an account of the human side of a project, explain goals, explore project dynamics, investigate particular phenomenon, and present outcomes in their complexity without being subject to the confines inherent in most other evaluation methods.The freedom to collect multiple kinds of information makes the case study method useful for exploring ideas and constructing theories about program or project dynamics.