This document summarizes media effects research on violence, including the types of effects studied (negative like aggression, positive like pro-social behavior), historical context of the research, common hypotheses about media effects, and methods used in studies. Some of the key hypotheses discussed are social learning theory, desensitization, reinforcement of preexisting tendencies, and cultivation effects. Research methods covered include laboratory experiments, surveys, natural experiments, and longitudinal studies. The document also notes the prevailing public view that media have powerful effects on passive audiences.

1. Media effects research Jim Barratt 10 October 2006

15. http://www.BiggerPictureResearch.net