手法を比較

	対面式参加観察	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	Early 20th century (Chicago School ~1920s; Spradley formalisation 1980)	Formalized mid-20th century (Gold 1958); practice dates to late 19th-century social surveys
提唱者	Chicago School sociologists (Robert Park, Ernest Burgess); systematised by Raymond Gold (1958) and James Spradley (1980)	Raymond Gold (role typology); earlier roots in social survey movement and Chicago School sociology
種類	Qualitative data collection technique	Qualitative / quantitative observational data collection
原典	Spradley, J. P. (1980). Participant Observation. Holt, Rinehart and Winston. ISBN: 978-0030445019	Gold, R. L. (1958). Roles in sociological field observations. Social Forces, 36(3), 217–223.
別名	in-person participant observation, direct participant observation, fieldwork participant observation, co-present observation	detached observation, systematic observation, structured field observation, external observation
関連	5	5
概要	Face-to-face participant observation is a qualitative data collection technique in which the researcher physically enters a setting and engages with participants in real time to document social behaviour, interactions, and meaning-making as they naturally occur. Unlike online or remote variants, the researcher is bodily present, enabling direct sensory access to context, non-verbal cues, and the full texture of everyday life in the setting under study.	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.