Stressor effects on conduct disturbances were not as evident. In girls, the only significant effects were for maternal psychopathology and social deprivation in the first year of life. In boys, the main effects were maternal psychopathology between 0 – 3 years, inter-parental cruelty at 0 – 1 years and pre-birth social deprivation. Stressful life events at 2.5 to 3.5 years in girls and 5.5 to 7 year in boys predicted conduct disturbances.