The study investigated the mediating role of parent-child relationship on Psychosocial Adjustment among in-school adolescents in Anambra State. The purpose of the study was to find out the mediating role of parent-child relationship on in-school adolescents’ psychosocial adjustments. Four research questions and four null hypotheses guided the study. Correlational Survey research design was adopted for the study. The population of the study comprised 19,478 senior secondary two (SS11) students in 268 secondary schools in the six education zones in Anambra State for the 2021/2022 academic session. The sample size of the study comprises 3,250 SS11 students sampled from the 19,478 SSII students in the 268 secondary schools in Anambra State. The sample was obtained using multi-stage sampling procedure. Two questionnaires titled “Parent-child relationship questionnaire (PCRQ) and Psychosocial adjustment questionnaire (PSOAQ) were used for data collection. The instruments were validated by three experts; two from the Department of Educational Foundations and the other in the Department of Guidance and Counseling, all from the Faculty of Education, Nnamdi Azikiwe University, Awka. The reliability of the instruments was established using Crombach’s alpha method and the alpha coefficients indices of 0.81 and 0.78 respectively for PCRQ and PSOAQ. Data collected were analyzed using Linear-regression analysis. The findings showed that parent-child relationship plays a significant role on in-school adolescents’ psychosocial adjustment. It was recommended among others that School Counselors should organize an intervention program on psychosocial dysfunction targeting in-school adolescents, their parents and community stakeholders with a special emphasis on the school setting and psychosocial adjustment of the students.
