手法を比較

	モバイル深層インタビュー	半構造化インタビュー
分野	調査方法論	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	2010s	1946 (Merton & Kendall); codified as a standard method through the 1980s–1990s
提唱者	Adapted from traditional in-depth interviewing; mobile application popularised in qualitative research from the 2010s onward	Robert K. Merton and Patricia Kendall (focused interview, 1946); further systematised by Steinar Kvale
種類	Qualitative data collection technique	Qualitative research method
原典	Galletta, A. (2013). Mastering the Semi-Structured Interview and Beyond. New York University Press. ISBN: 978-0814732595	Kvale, S., & Brinkmann, S. (2009). InterViews: Learning the Craft of Qualitative Research Interviewing (2nd ed.). Sage. ISBN: 978-0761925422
別名	mobile IDI, smartphone in-depth interview, mobile qualitative interview, mIDI	guided interview, semi-standardized interview, focused interview, SSI
関連	4	6
概要	A mobile in-depth interview (mIDI) is a qualitative data collection technique in which a researcher conducts an extended, exploratory conversation with a participant using a smartphone or tablet, either synchronously (voice or video call) or asynchronously (voice-message or text exchange). The approach retains the probing, open-ended character of traditional in-depth interviewing while leveraging the ubiquity and convenience of mobile technology to reach participants in naturalistic, everyday settings.	The semi-structured interview is a qualitative data-collection method in which the researcher prepares a set of key questions or topic areas in advance but remains free to probe, follow up, and reorder as the conversation evolves. Unlike structured interviews — which fix every question and sequence — or unstructured interviews — which are entirely open — the semi-structured format balances comparability across participants with the flexibility needed to capture the depth and nuance of individual perspectives. It is the most widely used interview format in social science, health, and education research.