This study was conducted to verify the influence of family and school on male and female students development of psychopathic behaviour in Port Harcourt and Emohua Local Government Areas of Rivers State. The population for the study was made up of all the senior secondary class two (SS II) students in the two Local Government Areas and they were 30,471. Sample for the study was made up of 570. Stratified random sampling technique was used to draw 10 secondary schools for the study. Two instruments namely Psychopathic Behaviour Checklist (SPBC) and Psychopathic Behaviour Development Questionnaire (SPDBQ) were developed by the researcher for the study. The construct validity of SPBC was 0.85, while its reliability co-efficient was 0.60. The test-retest reliability of SPBDQ was 0.85. Two research questions were answered, while two hypotheses were tested. The data analysis technique adopted for the study included: mean, standard deviation, t-test and percentage. There was no significant influence of family on male and female students development of psychopathic behaviour, also, there was no significant influence of school on male and female students development of psychopathic behaviour. Items analysis reveal that 50% of the students reported that the separation or divorce between their father and mother cause them to be angry and aggressive always, while 81.6% female and 77% of male students reported that they sometimes tell their parents lies. Some recommendations were made, which included that parents should serve as good role models to their children
Keywords: Criminal Versatility, Psychopathic Behaviour, School, family
