The Fundamental Attribution Error
In 1967, Edward Jones and Victor Harris asked students to rate the true attitudes of essayists who had written pro-Castro arguments. When told the writer chose the position freely, students inferred pro-Castro attitudes. When told the writer was assigned the position — forced to argue a side they might not believe — students still inferred pro-Castro attitudes. The situational constraint made no difference. The fundamental attribution error: we systematically underestimate the power of situations and overestimate the role of character when explaining other people's behavior.