Development of beliefs in a just world among Chinese early adolescents and the predictive role of family factors: A three-wave longitudinal study.

Personal BJW increased during the observation period, whereas general BJW was stable. Individuals with lower levels of childhood SES had lower initial personal and general BJW but a higher growth rate in personal BJW than those with higher SES. Individuals having siblings had lower levels of initial personal BJW but a higher growth rate in personal BJW than those from only-child family. Parental psychological control may exert consistent and contemporaneous negative effect on BJW across time.