Asch study- when asked pps to judge the lengths of lines and match them to a standard line, he found many of the pps went along with the obviously wrong answers of the other group members, pps later said they did this to avoid dissaproval from the group, compliance had occured so that they would 'fit in', furthermore, Asch demonstrated in a later variation (1955) that when the pressure to publically conform is removed by asking pps to write down their answers on a piece of paper, rather than say them aloud the conformity rates fell to 12.5% as the fear of rejection became far less.