In: Psychology
Asch - Conformity Experiment
Solomon Asch conducted an experiment to investigate the extent to which social pressure from a majority group could affect a person to conform.
He believed that the main problem with Sherif's (1935) conformity experiment was that there was no correct answer to the ambiguous autokinetic experiment. How could we be sure that a person conformed when there was no correct answer?
Asch (1951) devised what is now regarded as a classic experiment in social psychology, whereby there was an obvious answer to a line judgment task.
If the participant gave an incorrect answer it would be clear that this was due to group pressure.
Experimental Procedure
Asch used a lab experiment to study conformity, whereby 50 male students from Swarthmore College in the USA participated in a ‘vision test.’
Using a line judgment task, Asch put a naive participant in a room with seven confederates/stooges. The confederates had agreed in advance what their responses would be when presented with the line task.
The real participant did not know this and was led to believe that the other seven confederates/stooges were also real participants like themselves.
Each person in the room had to state aloud which comparison line (A, B or C) was most like the target line. The answer was always obvious. The real participant sat at the end of the row and gave his or her answer last.
There were 18 trials in total, and the confederates gave the wrong answer on 12 trails (called the critical trials). Asch was interested to see if the real participant would conform to the majority view.
Asch's experiment also had a control condition where there were no confederates, only a "real participant."