Effects of media violence use in adolescence: A longitudinal study with an experimental intervention

为替代申请人12个月的教学和行政职责而申请的资金旨在帮助完成自2007年以来由DFG资助的项目“青少年使用媒体暴力的影响：一项具有实验性干预的纵向研究”。每年间隔的五个数据波的广泛的数据库提供了解决一些理论和方法问题的可能性，这些问题超出了该项目指定的核心研究问题。为了充分利用这一潜力并及时公布研究结果，申请人有必要从正常的教学和行政职责中解脱出来，以完成这些分析。该项目从96个学校班级的1，750名参与者的样本中产生了用于纵向分析的数据，这些参与者在项目开始时是七年级或八年级的学生，并参加了五次测量中的至少两次。替代期的拟议工作计划针对三个主要任务：（1）多层次分析媒体暴力使用与攻击之间的关系，试图证明媒体暴力使用与攻击在个人层面上的协变之间的相互作用，以及媒体暴力使用与攻击在阶级层面上的模式。这种多层次的分析目前在关于媒体暴力和攻击的国际研究中是没有的。(2)分析攻击行为随时间的轨迹，识别持续或停止攻击行为的模式及其预测因素，使用最先进的潜在增长曲线建模分析。在这里，我们的目的是确定调解过程中，可能有助于持续或增加的攻击性行为模式的过程中的青春期。(3)媒体暴力使用的不同操作化及其与攻击性行为相关的分歧或趋同结果的方法论分析。目前的数据集提供了一个机会，可以根据使用频率和暴力内容评级的不同衡量标准，创建媒体暴力使用指数。检查这些不同的指数显示收敛或不同的关系，随着时间的推移，以及建议的中介变量的程度可以作出重大贡献的理解方法方差的作用，在解释媒体暴力使用和侵略之间的联系，在目前的研究文献。

The requested funding for a replacement to relieve the applicant from teaching and administrative duties for a period of 12 months is designed to aid the completion of the project Effects of media violence use in adolescence: A longitudinal study with an experimental intervention that has been funded by the DFG since 2007. The extensive data base of five data waves at yearly intervals provides the possibility of addressing a number of theoretical and methodological questions regarding the development of aggressive behavior in adolescence that go beyond the core research questions specified for the project. To fully exploit this potential and publish the findings in a timely fashion, it is necessary for the applicant to be relieved from regular teaching and administrative duties for the completion of these analyses. The project has generated data for the longitudinal analysis from a sample of 1,750 participants from 96 school classes who were in Grade 7 or 8 at the beginning of the project and took part in at least two of the five measurements. The proposed program of work for the replacement period is directed at three major tasks: (1) The multi-level analysis of the relation between media violence use and aggression over time, seeking to demonstrate interactions between the covariation of media violence use and aggression at the individual level, and patterns of media violence use and aggression at the class level. Such multi-level analyses are currently not available in the international research on media violence and aggression. (2) The analysis of trajectories of aggressive behavior over time in terms of identifying persisting or desisting patterns of aggressive behavior as well as their predictors, using state-of-the-art latent growth curve modeling analyses. Here, the aim is to identify mediating processes that may contribute to the persistence or increase of aggressive behavior patterns in the course of adolescence. (3) The methodological analysis of different operationalizations of media violence use and their divergent or convergent outcomes in relation to aggressive behavior. The present data set provides the opportunity to create indices of media violence use based on different measures of frequency of use and of violent content ratings. Examining the extent to which these different indices show convergent or different relations with aggressive behavior as well as the proposed mediating variables over time can make a significant contribution to the understanding of the role of method variance in interpreting the links between media violence use and aggression in the current research literature.