128 male undergraduates participated in a ‘vision test’.
Line judgement Task, confederates gave wrong answers when answering A, B, or C.
The were 18 trials in total and the Confederates gave the wrong answer on 12 trials (called the critical trials).
About 1/3 of the participants who were placed in this situation conformed.
Over the 12 critical trials, about 3/4 of participants conformed at least once, and 1/4 never conformed.
Some said it was due to ISI and some said NSI.