Kniveton, B. H. (1986). Peer models and classroom violence: an experimental study. Educational Research, 28 (2), 111-116.

Abstract:  Investigated the effect of repeated exposure to increasing levels of violence in the classroom among 48 boys (61-70 mo old). In a laboratory setting it was found that Ss who watched 2 aggressive models on a video film added proportionately to their repertoire and time spent being aggressive in a play situation. Watching an aggressive model, after having first seen a constructive one, reduced the impact of the constructive model. These results highlight the need to minimize models of misbehavior in the classroom and for teachers to manage the class in order to produce maximum exposure to good behavior models. (PsycINFO Database Record (c) 2004 APA, all rights reserved)