Abstract
Using 16 male and 16 female subjects, this study investigated the effects of viewing justified filmed violence and the effects of catharsis on aggression, as measured by levels of shock and ratings of hostility. Berkowitz's position that the viewing of justified filmed violence reduces the threshold for aggression was supported by both the shock and the rating data. Data did not support his position that the direct expression of aggression and hostility against an insulting partner is likely to serve as a stimulus for further aggression. In fact the data obtained from the male subjects are consistent with the catharsis principle.
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