Multiple Case Study

Multiple case study involves in-depth investigation of two or more bounded units or instances (“cases”) of a particular program, phenomenon, or issue. Cases are analyzed individually and collectively to reveal similarities, differences, and patterns in how the phenomenon manifests or operates in different real-world contexts. Multiple case studies are also referred to as collective case studies, cross-case studies, and multisite case studies. This entry presents a description of multiple case study, considerations for using this design, and examples.


Multiple case study focuses on the bounded case as the unit of analysis. A case can be an individual, group of people, organization, community, process, or policy. Cases are bounded by parameters that establish each case as a distinct entity, such as a specific place and time. For ...

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