The extent of movement of a point of light was judged 50 times by each of 9 subjects when alone, then with a planted experimenter whose pre-arranged judgments established a "social norm," and alone 28 days later. There were wide individual differences in autokinetic suggestibility, and these effects carried over the 28-day period. Susceptibility to norms may reflect varying desire for status. (PsycINFO Database Record (c) 2006 APA, all rights reserved)