An Experimental Examination of Peers' Influence on Adolescent Girls' Intent to Engage in Maladaptive Weight-Related Behaviors

作者:Rancourt Diana*; Choukas Bradley Sophia; Cohen Geoffrey L; Prinstein Mitchell J
来源:International Journal of Eating Disorders, 2014, 47(5): 437-447.
DOI:10.1002/eat.22258

摘要

Objective: Social psychological theories provide bases for understanding how social comparison processes may impact peer influence. This study examined two peer characteristics that may impact peer influence on adolescent girls' weight-related behavior intentions: body size and popularity. Method: A school-based sample of 66 9th grade girls (12-15 years old) completed an experimental paradigm in which they believed they were interacting with other students (i.e., "e-confederates"). The body size and popularity of the e-confederates were experimentally manipulated. Participants were randomly assigned to one of the three experimental conditions in which they were exposed to identical maladaptive weight-related behavior norms communicated by ostensible female peers who were either: (1) Thin and Popular; (2) Thin and Average Popularity; or (3) Heavy and Average Popularity. Participants' intent to engage in weight-related behaviors was measured pre-experiment and during public and private segments of the experiment. Results: A significant effect of condition on public conformity was observed. Participants exposed to peers' maladaptive weight-related behavior norms in the Heavy and Average condition reported significantly less intent to engage in weight-related behaviors than participants in either of the thin-peer conditions (F(2) = 3.93, p = .025). Peer influence on private acceptance of weight-related behavior intentions was similar across conditions (F(2) = .47, p = .63). Discussion: Body size comparison may be the most salient component of peer influence processes on weight-related behaviors. Peer influence on weight-related behavior intention also appears to impact private beliefs. Considering peer norms in preventive interventions combined with dissonance-based approaches may be useful.

  • 出版日期2014-7