ABSTRACT
Objective:To explore the meditation effect of moral disengagement and self-esteem between friendship jealousy and aggression.Methods:A total of 387 middle school students were selected.Their degrees of friendship jealousy,moral disengagement,self-esteem and aggression were assessed with the Friendship Jealousy Questionnaire (FJQ),Moral Disengagement Scale (MDS),Self-esteem Scale (SES),and Aggression Questionnaire (AQ),respectively.The relationship among these factors was analyzed by structural equation modeling.Results:Both FJQ and MDS scores were positively correlated with AQ scores(r =0.48-0.56,Ps ＜0.001),and negatively correlated with SES scores(r =-0.47--0.23,Ps ＜ 0.001).Structural equation modeling results showed that FJQ score had indirect effects on AQ score through the mediation of MDS and SES in middle school students.The mediating effects accounted for 46.0％ and 18.0％ respectively.Conclusion:It suggests that moral disengagement and self-esteem may play mediating effects on relationship between friendship jealousy and aggression in middle school students.