School adjustment and bullying of Chinese left-behind children: Mediating role of social support

Bullying has become a social concern in schools in China, and school adjustment is an important factor affecting bullying. We explored the mediating role of social support in the relationship between school adjustment and bullying among 600 left-behind children in junior middle schools
 in Shandong Province, China. The students completed the School Adjustment Scale, the Multidimensional Scale of Perceived Social Support, and the Junior High School Bullying Questionnaire. Results showed significant differences in school adjustment, social support, and bullying between the
 children of families where only one parent had migrated to the city for work, and children of families where both parents had done so. School adjustment, social support, and bullying were significantly correlated among the left-behind children. Social support played a mediating role in the
 relationship between the school adjustment and bullying of these children. The results provide references for school teachers and family members to reduce bullying of left-behind children.