Background: Individual differences in conduct problems arise in part from proneness to anger/frustration and poor self-regulation of behavior. However, the genetic and environmental etiology of these connections is not known. Method: Using a twin design, we examined genetic and environmental covariation underlying the well-documented correlations…

The findings of Masling and Harris were felt to violate the principle of parsimony and to cast unwarranted asperisons on the students who served as Es. The data were reinterpreted as showing that the male students were simply applying sound clinical principles in an attempt to do as well as possible on the task given them. (Author)

Female Ss answered, in writing, each of a series of 40 factual questions. The Ss then had an opportunity to request help from a confederate before providing a final oral answer. (Author)

The Psychological Screening Inventory (PSI) was administered to 1,123 subjects in the 13-16 year age range. This group was divided into groups less likely and a more likely to appear in court. These were compared to a group on juvenile probation. Significant differences were found on several of the PSI scales. (Author)