Reicher and Haslam (2006)
Method: This was a lab experiment and during the experiment, 3 independent variables were manipulated.
2. Legitimacy of group division. All pp's were told after the one and only promotion, that there was no difference in qualities between the 2 groups.
PP's: Male pp's were recruited through leaflets/advertisements in the newspapers. The initial group of 332 were reduced to 15 through 3 phases of screening.
Ethics were a major problem in this study but they were controlled by-
The study was sent to the BPS committee to be agreed.