เปรียบเทียบวิธี

	การศึกษาเฉพาะกรณีเชิงระยะยาว	การวิจัยกรณีศึกษา
สาขาวิชา	เชิงคุณภาพ	เชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1984 (Yin's foundational codification); longitudinal case methods in use since early 20th century	1984 (seminal codification)
ผู้ริเริ่ม	Robert K. Yin (systematic codification); roots in clinical and anthropological case tradition	Robert K. Yin (systematised in Case Study Research, 1984)
ประเภท	Qualitative research design	Qualitative research design
แหล่งต้นตำรับ	Yin, R. K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169	Yin, R.K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169
ชื่อเรียกอื่น	single-case longitudinal design, in-depth longitudinal case study, idiographic longitudinal study, LSCS	Vaka Çalışması (Case Study), case study design, case study methodology
ที่เกี่ยวข้อง	6	5
สรุป	A longitudinal single case study is a qualitative research design that follows one bounded unit — a person, organization, program, or community — through multiple points in time. Unlike a cross-sectional snapshot, it captures how phenomena develop, shift, or respond to events across months or years, combining the contextual richness of case study methodology with the temporal depth needed to understand process and change.	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.