| Prosocial behavior is an act of helping,sharing,donating,etc.,exhibited by individuals in social life,and is an important part of the social development of adolescents.Studies have shown that active sibling relationships have an important influence on prosocial behavior,but the internal mechanism of sibling relationships needs to be further explored.Based on the ecosystem theory and social learning theory,this study constructs a regulated mediating effect model to test the mediating role of moral disengagement in the sibling relationship and prosocial behavior,and the role of empathy in the above intermediary path.In this study,659 junior high school students in Shanxi Province were investigated by using the sibling relationship questionnaire,the prosocial behavioral bias scale,the moral disengagement questionnaire,and the basic empathy scale.Research indicates:1.Junior high school students’sibling relationship is genereally good,and there are significant differences in gender,family location,and grade:the scores of girls’siblings are significantly higher than those of boys,the scores of urban subjects’siblings are significantly better than those of rural students,the scores of first grade students’siblings are higher than the second grade students,and students whose sibling age difference is less than 3 years old have a significantly higher score than those whose sibling age difference is greater than 9 years old.The prosocial behavioral tendency of junior high school students is generally higher,and there are significant differences in family location and grade:the prosocial behavioral tendency of urban subjects is significantly higher than that of rural subjects,and the scores of first-year students are significantly higher than those of the other two grades.The moral disengagement level of junior high school students is generally low,and there are significant differences in gender,family location,grade level,and sibling age difference:the moral evasion score of boys is significantly higher than that of girls,the urban subjects were better than the rural subjects,the third-year students scored significantly higher than the first-year students,and the students with the age difference of less than 3 years old scored significantly higher than the students whose age difference was greater than 9 years.Junior high school students’ empathy ability is generally good,and there are significant differences in gender.The girls’ empathy scores are significantly higher than boys’.2.Prosocial behavior is significantly and positively related to compatriots’relationship and empathy,and is significantly negatively correlated with moral detachment.There is a significant positive correlation between siblings and empathy,and a significant negative correlation with moral excuse.Moral disengagement is significantly negatively correlated with empathy.3.Moral disengagement plays a partial intermediary role between siblings and prosocial behavior.4.Empathy plays a regulatory role in the relationship between compatriots and moral disengagement.That is,when the level of empathy is high,the relationship between siblings has weakened moral excuse. |