中文摘要：

研究采用潜在转变分析探讨了攻击性初中生的类别转变。276名初中参加了为期一年的短期纵向追踪研究,在一年中分两次报告了自己的攻击行为。用潜在类别模型分析了初二到初三时青少年的攻击类别,结果表明初中生有三种攻击模式。研究以潜在转变分析进一步探究了这三种攻击模式的变化,结果发现两种模式具有很强的稳定性,不同模式之间也有一定程度的转变。最后,研究探讨了攻击类别转变的影响因素,结果表明性别与友谊质量可以起到显著作用。针对实际意义,文章最后进行了讨论和总结。

英文摘要：

Many researchers investigated adolescent＇s aggressive behavior, in consideration of the negative consequences and psychological problems that aggression will cause. Some researches have been done to show the development of aggressive behavior among adolescence or children, others explored the relationship between aggression and personality, cognitive factors or parenting. With regard to the development of aggression, statistics analysis that deal with continuous variables prevailed researches. Some conclusions was made through regression, ANOVA, HLM or LGM. But researchers early stressed that patterns of aggression should be more important issue and aggressive researchers should explore the transitions of the patterns. We can recognize and intervene the aggressive behavior more comprehensively and adequately if we fi nd the pattern of aggression. Despite several conclusions have been come through analyzing continuous variables, these conclusions are singular and tedious. In more specifi c terms, the researches adopted continuous variables can indicate the quantitative relationship or the change on the degree or the frequency of aggression. The current aggression research needs some conclusion from the perspective of categorical variables. Such study can show the pattern of aggression behavior. The latent class model and latent transition model that are new analysis method in psychological study, fortunately, can deal with the categorical variable and present the qualitative relationship and change. This study describes patterns of youth aggression and change in aggression profi les. 276 participants attend this longitudinal study. Aggression behaviors and friendship quality were assessed. Through recoding the aggressive scores, we get a set of dichotomous variables that indicated whether specifi c aggression behaviors is present or not. Latent class analysis was used to determine the aggressive pattern of youth, and latent transition analysis was used to examine the conditional probabilities of transitions betw