手法を比較

	詳細インタビュー	現象学
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	Mid-20th century (formalised in qualitative social research from the 1950s onward)	Early 20th century (Husserl ~1900–1913; Heidegger ~1927)
提唱者	Rooted in sociological interviewing traditions; systematised by researchers including Steinar Kvale and Herbert J. Rubin	Edmund Husserl (transcendental); Martin Heidegger (hermeneutic)
種類	Qualitative research method	Qualitative research approach
原典	Kvale, S. (1996). InterViews: An Introduction to Qualitative Research Interviewing. Sage. ISBN: 978-0803958203	Moustakas, C. (1994). Phenomenological Research Methods. Sage. ISBN: 978-0803957466
別名	IDI, semi-structured interview, unstructured interview, qualitative interview	Fenomenoloji, phenomenological inquiry, phenomenological analysis
関連	6	6
概要	The in-depth interview is a one-to-one qualitative data-collection method in which a researcher engages a participant in an extended, open-ended conversation to elicit rich, detailed accounts of experiences, perceptions, beliefs, or meanings. Unlike structured surveys, the interview guide serves as a flexible road map rather than a fixed script, allowing the researcher to probe unexpected directions as they emerge. The approach is foundational to qualitative inquiry and is used directly as a primary method or as the data-collection arm of phenomenology, grounded theory, narrative analysis, and other frameworks.	Phenomenology is a qualitative research approach that investigates how participants live through and make sense of a specific experience. Rooted in the philosophy of Edmund Husserl and extended by Martin Heidegger, it aims to reveal the essential structures of lived experience rather than to measure or predict outcomes. The two most widely applied variants are Husserl's transcendental phenomenology, which seeks universal essences, and Heidegger's hermeneutic phenomenology, which emphasises interpretation within context.