Gadow, K. D., & Sprafkin, J. (1987). Effects of viewing high versus low aggression cartoons on emotionally disturbed children. Journal of Pediatric Psychology, 12 (3), 413-427.

Abstract:  In 2 studies, a class of 9 younger (aged 5.7-8.3 yrs) and a class of 11 older (aged 8.6-12.1 yrs) emotionally disturbed (ED) children were exposed to both high and low aggression cartoons and were observed during lunch and recess. Findings indicate that the older class exhibited a significant increase in physical aggression, nonphysical aggression, and appropriate social interaction following high aggression cartoons compared with baseline. Increased aggression was evident during lunch and recess. The younger group’s physical and nonphysical aggression decreased following low aggression cartoons. They became more noncompliant following exposure to high aggression cartoons and more nonphysically aggressive when their behavior immediately preceding media exposure was used as a covariate. (PsycINFO Database Record (c) 2004 APA, all rights reserved)