Although research has indicated the association between child abuse and non-suicidal self-injury (NSSI), few studies have examined their relationship in a particular sample of Chinese rural-to-urban migrant adolescents who tend to experience parental abuse and engage in NSSI. More importantly, factors moderating the relationship between child abuse and migrant adolescents' NSSI have been understudied. To address this issue, this study aimed to examine whether beliefs about adversity and family socioeconomic status (SES) moderated the longitudinal relationship between child abuse and NSSI in a sample of Chinese migrant adolescents. 308 Chinese rural-to-urban migrant adolescents (aged 10-14; 138 boys) completed the two-wave survey. Self-reported questionnaires regarding child abuse, NSSI, beliefs about adversity, and family SES were used. Results showed that child abuse was significantly positively related to NSSI a year later. Moreover, the interaction of child abuse, beliefs about adversity, and family SES was significant. Specifically, for migrant adolescents with low SES, positive beliefs about adversity played a protective role in the association between child abuse and NSSI; while for those with high SES, such beliefs showed vulnerability. Findings underscore the importance of considering multiple resilient factors simultaneously by examining beliefs about adversity and SES as the moderating mechanisms in the association between child abuse and NSSI. Findings also emphasize the significance of developing differential interventions targeting NSSI in abused Chinese migrant adolescents. Positive beliefs about adversity are important in buffering the negative effect of child abuse for migrant adolescents with low SES. For those with high SES, special attention should be given to the interactive impact of child abuse, beliefs about adversity, and family SES.
Keywords: Chinese migrant adolescent; beliefs about adversity; child abuse; family socioeconomic status; non-suicidal self-injury.