Comparer des méthodes

	Stratégie d'entretien semi-structuré multi-sources	Entretien approfondi
Domaine	Méthodologie d'enquête	Qualitatif
Famille	Process / pipeline	Process / pipeline
Année d'origine	1980s–2000s (multi-source data strategies in qualitative inquiry)	Mid-20th century (formalised in qualitative social research from the 1950s onward)
Auteur d'origine	Established practice in qualitative and mixed-methods research; systematized by Patton (2002) and Bryman (2016)	Rooted in sociological interviewing traditions; systematised by researchers including Steinar Kvale and Herbert J. Rubin
Type	Qualitative data collection technique	Qualitative research method
Source fondatrice	Bryman, A. (2016). Social Research Methods (5th ed.). Oxford University Press. ISBN: 978-0198745754	Kvale, S. (1996). InterViews: An Introduction to Qualitative Research Interviewing. Sage. ISBN: 978-0803958203
Alias	multi-informant semi-structured interview, multi-perspective semi-structured interview, multi-source qualitative interview, triangulated semi-structured interview	IDI, semi-structured interview, unstructured interview, qualitative interview
Apparentées	5	6
Résumé	A multi-source semi-structured interview strategy collects qualitative data via guided, open-ended interviews from two or more distinct groups or perspectives relevant to the same phenomenon. By deliberately querying multiple vantage points — such as managers and employees, patients and clinicians, or teachers and students — the researcher can compare, contrast, and triangulate accounts, producing a richer and more balanced picture than any single-source approach allows.	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.