手法を比較

	Bystander Intervention Paradigm	Confederate Paradigm
分野	社会心理学	社会心理学
系統	Process / pipeline	Process / pipeline
提唱年	1968	1956
提唱者	Bibb Latane & John Darley	Classic social psychology (Asch, Milgram, Latane and others)
種類	Experimental paradigm for emergency helping	Methodological design using trained accomplices
原典	Latane, B., & Darley, J. M. (1968). Group inhibition of bystander intervention in emergencies. Journal of Personality and Social Psychology, 10(3), 215-221.	Asch, S. E. (1956). Studies of independence and conformity: I. A minority of one against a unanimous majority. Psychological Monographs: General and Applied, 70(9), 1-70.
別名	Bystander Effect Experiment, Diffusion of Responsibility Paradigm, Emergency Helping Paradigm	Experimental Accomplice Method, Stooge Paradigm, Trained Confederate Design
関連	3	3
概要	The bystander intervention paradigm, pioneered by Latane and Darley in 1968, experimentally demonstrates the bystander effect: the counterintuitive finding that individuals are less likely to help in an emergency when other people are present. In their classic studies a participant encounters a staged emergency -- smoke filling a room, a person apparently having a seizure, or a fall -- either alone or in the company of others (sometimes passive confederates). The dependent measures are whether and how quickly the participant intervenes. Helping reliably declines, and slows, as the number of bystanders increases, an effect Latane and Darley explained through diffusion of responsibility, pluralistic ignorance, and audience inhibition. They formalized the path to helping as a sequence of decisions, each of which the presence of others can derail. The paradigm reshaped understanding of prosocial behavior and emergency response.	The confederate paradigm is a foundational methodological design in social psychology in which trained accomplices -- people who appear to be ordinary participants or bystanders but are actually part of the research team -- enact scripted behavior to create controlled social situations. By standardizing what confederates do, researchers can manipulate the social environment with precision while keeping the naive participant convinced the situation is real. Confederates have been the linchpin of many landmark studies: the unanimous wrong majority in Asch's conformity work, the passive bystanders in Latane and Darley's helping experiments, the learner in Milgram's obedience studies, and partners in countless interaction studies. The paradigm allows experimental control over otherwise uncontrollable social stimuli, making it possible to draw causal conclusions about how others' behavior shapes our own.