Answer:
influence of the group majority on an individual's judgment
Explanation:
The Asch effect was concluded from a famous experiment conducted by Solomon Asch in 1951.
In the research, a group of subjects are gathered and presented with several lines with different length. The researchers asked the subjects to point out which one of the length is the longest one.
But, the researchers put several actors within the subjects in order to purposefully point out the wrong answers.
As it turned out, many other non-actors subjects started to change their judgement and conform to the wrong answers given by the actors.