手法を比較

	電話アシスト型フォーカスグループ	電話による半構造化インタビュー
分野	調査方法論	調査方法論
系統	Process / pipeline	Process / pipeline
提唱年	1980s–1990s (widespread adoption)	1970s–1980s (widespread adoption in health and social research)
提唱者	Adapted from in-person focus group methodology (Robert Merton et al., 1950s); telephone modality adopted in market and health research from the 1980s onward	Adapted from face-to-face semi-structured interviewing; telephone use in social research documented from the 1970s onward
種類	Qualitative group data collection technique	Qualitative data collection technique
原典	Greenbaum, T. L. (1998). The Handbook for Focus Group Research (2nd ed.). Sage. [Chapter on telephone and technology-mediated focus groups] ISBN: 978-0761912316	Novick, G. (2008). Is there a bias against telephone interviews in qualitative research? Research in Nursing & Health, 31(4), 391–398.
別名	telephone focus group, phone focus group, TAFG, teleconference focus group	telephone semi-structured interview, phone-based semi-structured interview, TASI, telephone qualitative interview
関連	4	6
概要	A telephone-assisted focus group is a qualitative data collection technique in which a moderator facilitates a structured group discussion among multiple participants connected simultaneously via a telephone conference bridge or audio platform. It preserves the core interactive dynamics of traditional focus groups — group synergy, probing, and spontaneous reactions — while eliminating the need for geographic co-location, making it suitable for hard-to-reach, geographically dispersed, or mobility-constrained populations.	A telephone-assisted semi-structured interview is a qualitative data collection technique in which a researcher conducts a guided conversation with a participant over the telephone, using a pre-designed topic guide that balances predetermined questions with freedom to probe and explore. It combines the flexibility of semi-structured interviewing with the geographic reach and logistical convenience of telephone communication, making it widely used in health, social, and organizational research.