Salwen, M.B., Depagne, M. (2001). Third-person perception of television violence: The role of self-perceived knowledge. Media Psychology, 3 (3), 211-236.

Abstract: This study investigated the proposition that selfperceived knowledge or self-expertise is a primary theoretical construct in understanding thirdperson perception of television violence effects in a sample of Americans (mean age 43 yrs old). Consistent with most past research, the findings confirm people’s thirdperson tendencies to attribute greater media effects of television violence on other people than on themselves. As hypothesized, selfperceived knowledge was a stronger predictor of thirdperson perception than sociodemographic variables (demographics, ideology, and media use). The study also found that selfperceived knowledge was more likely to moderate than mediate the relationship between sociodemographic variables and thirdperson perception. Whereas a moderator affects the strength of the relationship between an independent variable and a dependent variable, a mediator explains the relationship between the two variables. In sum, the findings indicate that respondents’ judgments of their superior selfperceived knowledge of television violence might be of theoretical significance in thirdperson effect research. (PsycINFO Database Record (c) 2004 APA, all rights reserved)