手法を比較

	マルチソース非参加観察	非参加観察
分野	調査方法論	調査方法論
系統	Process / pipeline	Process / pipeline
提唱年	1970s–1980s (methodological triangulation literature)	Formalized mid-20th century (Gold 1958); practice dates to late 19th-century social surveys
提唱者	Rooted in systematic observation traditions; multi-source triangulation formalised by Norman Denzin	Raymond Gold (role typology); earlier roots in social survey movement and Chicago School sociology
種類	Qualitative/naturalistic data collection strategy	Qualitative / quantitative observational data collection
原典	Denzin, N. K. (1978). The Research Act: A Theoretical Introduction to Sociological Methods (2nd ed.). McGraw-Hill.	Gold, R. L. (1958). Roles in sociological field observations. Social Forces, 36(3), 217–223.
別名	multi-site non-participant observation, multi-context unobtrusive observation, non-reactive multi-source observation, triangulated non-participant observation	detached observation, systematic observation, structured field observation, external observation
関連	6	5
概要	Multi-source non-participant observation is a qualitative data collection strategy in which a researcher systematically observes naturally occurring behaviour across two or more distinct settings, sites, or data sources without joining or influencing the activity being studied. By deliberately excluding the researcher from participation and drawing on multiple independent observational vantage points, the approach strengthens credibility through methodological triangulation while preserving the unobtrusiveness that protects naturalistic behaviour.	Non-participant observation is a data-collection method in which the researcher observes behavior, interactions, or events in a natural or structured setting without joining or influencing the activity under study. The observer maintains a deliberate distance from participants to minimize their own effect on the phenomena being recorded, producing field notes, behavioral tallies, or recordings that reflect naturally occurring behavior rather than behavior shaped by researcher involvement.