Efficacy of an Intervention to Reduce the Use of Media Violence and Aggression: An Experimental Evaluation with Adolescents in Germany

被引:26
|
作者
Moeller, Ingrid [1 ]
Krahe, Barbara [1 ]
Busching, Robert [1 ]
Krause, Christina [1 ]
机构
[1] Univ Potsdam, Dept Psychol, D-14476 Potsdam, Germany
关键词
Media violence; Intervention; Experimental evaluation; Longitudinal study; ET-AL; 2010; VIDEO GAMES; RELATIONAL AGGRESSION; NORMATIVE BELIEFS; PROSOCIAL BEHAVIOR; TELEVISION; METAANALYSIS; EXPOSURE; COMPUTER; VIEWERS;
D O I
10.1007/s10964-011-9654-6
中图分类号
B844 [发展心理学(人类心理学)];
学科分类号
040202 ;
摘要
Several longitudinal studies and meta-analytic reviews have demonstrated that exposure to violent media is linked to aggression over time. However, evidence on effective interventions to reduce the use of violent media and promote critical viewing skills is limited. The current study examined the efficacy of an intervention designed to reduce the use of media violence and aggression in adolescence, covering a total period of about 12 months. A sample of 683 7th and 8th graders in Germany (50.1% girls) were assigned to two conditions: a 5-week intervention and a no-intervention control group. Measures of exposure to media violence and aggressive behavior were obtained about 3 months prior to the intervention (T1) and about 7 months post-intervention (T2). The intervention group showed a significantly larger decrease in the use of violent media from T1 to T2 than the control group. Participants in the intervention group also scored significantly lower on self-reported aggressive behavior (physical aggression and relational aggression) at T2 than those in the control group, but the effect was limited to those with high levels of initial aggression. This effect was mediated by an intervention-induced decrease in the normative acceptance of aggression. No gender differences in program efficacy were found. The results show that a 5-week school-based intervention can produce changes in the use of media violence, aggressive norms, and behaviors sustained over several months.
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页码:105 / 120
页数:16
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