手法を比較

	参加型アクションリサーチ（PAR）	ケーススタディリサーチ（Case Study Research）
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	1940s (Lewin); PAR as distinct tradition formalised ~1970s–1980s	1984 (seminal codification)
提唱者	Kurt Lewin (action research foundations, 1940s); systematised for participatory contexts by Orlando Fals Borda, Paulo Freire, and William Foote Whyte	Robert K. Yin (systematised in Case Study Research, 1984)
種類	Qualitative research method	Qualitative research design
原典	Kemmis, S., McTaggart, R., & Nixon, R. (2014). The Action Research Planner: Doing Critical Participatory Action Research. Springer.	Yin, R.K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169
別名	PAR, community-based participatory research, collaborative action research, participatory inquiry	Vaka Çalışması (Case Study), case study design, case study methodology
関連	6	5
概要	Participatory Action Research (PAR) is a qualitative, community-centred methodology in which researchers and community members collaborate as co-investigators to identify a shared problem, take deliberate action, observe outcomes, and reflect critically on results — cycling iteratively until meaningful change is achieved. Unlike conventional research that studies people from the outside, PAR treats participants as active agents who co-own the research process, the knowledge produced, and the practical interventions that follow.	Case study research is a qualitative research design that investigates a specific phenomenon, individual, group, organisation, or event in depth within its real-world context. Systematised by Robert K. Yin in 1984, it supports single-case and multiple-case designs and draws on multiple data sources — interviews, observation, documents, and artefacts — to build a rich, contextualised account of a bounded unit.