To investigate the extent to which social pressure from a majority group could affect a person to conform
What is the procedure of Asch's research?
Lab experiment
50 male students from Swarthmore College thought they were partaking in a vision test - used a line judgement task to match a line to the target line length
Asch placed a naive participant with 7 confederates (actors planted by researchers and agreed on the answers beforehand)
Had to state which line was most like the target line (obvious) and the pps always went last
Each participant completed 18 trials and confederates gave wrong answers for 12 trials - CRITICAL TRIALS