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

申请的资金用于替代申请人，以减轻其为期12个月的教学和行政职责，旨在帮助完成“青少年使用媒体暴力的影响：一项实验性干预的纵向研究”项目，该项目自2007年以来一直由DFG资助。每年五个数据波的广泛数据库提供了解决一些关于青少年攻击行为发展的理论和方法问题的可能性，这些问题超出了为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发表研究结果，有必要免除申请人完成这些分析的常规教学和行政职责。该项目从96个学校班级的1750名参与者中提取了纵向分析的数据，这些参与者在项目开始时是七年级或八年级的学生，他们至少参加了五项测量中的两项。替换期的工作计划主要有三个主要任务：(1)对媒体暴力使用与攻击之间的关系进行多层次的分析，试图证明在个人层面上媒体暴力使用与攻击的共变之间的相互作用，以及在阶级层面上媒体暴力使用与攻击的模式。这种多层次的分析目前在媒体暴力和侵略的国际研究中尚不存在。(2)利用最先进的潜在增长曲线模型分析，分析攻击行为随时间的发展轨迹，以确定攻击行为的持续或停止模式及其预测因子。在这里，目的是确定调解过程，可能有助于持续或增加攻击性行为模式在青春期的过程中。(3)媒体暴力使用的不同操作方式及其与攻击行为相关的差异或趋同结果的方法分析。目前的数据集提供了根据使用频率和暴力内容评级的不同措施创建媒体暴力使用指数的机会。研究这些不同的指标与攻击行为的趋同或不同关系的程度，以及随着时间的推移所提出的中介变量，可以对理解方法方差在解释当前研究文献中媒体暴力使用与攻击之间的联系中的作用做出重大贡献。

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.