The association between schizotypal traits and social functioning in adolescents from the general population.

Difficulties in social functioning have been linked to schizotypy, which may reflect vulnerability to psychotic disorders. We investigated these links in early adolescence, a developmental stage when many mental illnesses first emerge. Using the Strength and Difficulties Questionnaire and The Community Assessment of Psychic Experiences, we examined the association of peer-relationship problems and prosocial behavior with positive and negative schizotypy in a sample of 149 school children (70 girls, 79 boys) between 12 and 15 years old. The results showed that while increased positive schizotypy was significantly associated with increased peer-relationship problems, increased negative schizotypy was significantly associated with decreased prosocial behavior. These effects were observed after the potential effects of age, sex, general cognitive abilities, the ability to infer affective mental states, anxiety, and depression had been taken into account. These results suggest that different dimensions of schizotypy are associated with different aspects of social dysfunction in adolescents. Interventions aimed at improving social functioning in adolescence would benefit from considering these unique associations.