手法を比較

	Longitudinal Interpretive Phenomenological Analysis (L-IPA)（縦断的解釈現象学分析）	現象学
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	2000s–2010s (IPA from mid-1990s; longitudinal variant formalised ~2009–2014)	Early 20th century (Husserl ~1900–1913; Heidegger ~1927)
提唱者	Jonathan A. Smith and colleagues; longitudinal extension developed by Smith, Flowers, and Larkin	Edmund Husserl (transcendental); Martin Heidegger (hermeneutic)
種類	Qualitative research design and analysis approach	Qualitative research approach
原典	Smith, J. A., Flowers, P., & Larkin, M. (2009). Interpretive Phenomenological Analysis: Theory, Method and Research. Sage. ISBN: 978-1412908344	Moustakas, C. (1994). Phenomenological Research Methods. Sage. ISBN: 978-0803957466
別名	L-IPA, longitudinal IPA, repeated-interview IPA, temporal IPA	Fenomenoloji, phenomenological inquiry, phenomenological analysis
関連	4	6
概要	Longitudinal Interpretive Phenomenological Analysis (L-IPA) extends the IPA tradition by interviewing the same participants at multiple time points, allowing researchers to trace how the meaning of a lived experience evolves over time. Grounded in phenomenology and hermeneutics, L-IPA preserves idiographic depth at each wave while adding a temporal dimension that cross-sectional IPA cannot provide. It is used widely in health psychology, illness adjustment studies, and any domain where experience unfolds across a significant time span.	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.