Subjects in a Milgram experiment who were asked to shock the “learner” with high voltage straight away were more obedient than those who reached high voltage gradually, refuting the "foot-in-the-door" interpretation

Multiple Feet-in-the-Door and Obedience. Tomasz Grzyb & Dariusz Dolinsk. Basic and Applied Social Psychology, Oct 22 2020. https://doi.org/10.1080/01973533.2020.1837134

Rolf Degen's take: https://twitter.com/DegenRolf/status/1319854621452603393

Abstract: Gilbert’s hypothesis regarding the possible effect of the feet-in-the-door procedure on obedience to an authority figure in Milgram’s paradigm was tested in the course of two studies. Neither the first experiment, conducted in a laboratory (N = 80), which was a true copy of the model proposed by Milgram, nor the second study, conducted online (N = 485), validated Gilbert’s hypothesis. Actually, the results demonstrated the opposite–fewer of those subjects who were asked to shock the “learner” with high voltage straight away refused to follow the order than those who reached the same voltage level gradually. In Study 2, we also tested the hypothesis regarding the role of a postponement as a factor in decreasing one’s obedience.