Σύγκριση μεθόδων

	Διαχρονική Μελέτη Περίπτωσης Ενός Ατόμου	Έρευνα μελέτης περίπτωσης
Πεδίο	Ποιοτικές Μέθοδοι	Ποιοτικές Μέθοδοι
Οικογένεια	Process / pipeline	Process / pipeline
Έτος προέλευσης	1984 (Yin's foundational codification); longitudinal case methods in use since early 20th century	1984 (seminal codification)
Δημιουργός	Robert K. Yin (systematic codification); roots in clinical and anthropological case tradition	Robert K. Yin (systematised in Case Study Research, 1984)
Τύπος	Qualitative research design	Qualitative research design
Θεμελιώδης πηγή	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
Εναλλακτικές ονομασίες	single-case longitudinal design, in-depth longitudinal case study, idiographic longitudinal study, LSCS	Vaka Çalışması (Case Study), case study design, case study methodology
Συναφείς	6	5
Σύνοψη	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.