We investigated relations between children’s personality and their nonverbal intelligence. Simple correlations showed that children’s intelligence was positively associated with self-reported
benevolence levels and with parental reports on their conscientiousness and imagination levels. Regression analyses revealed a more complex association pattern, with intelligence/personality correlations being moderated by the variables of child and parent gender. Results also yielded a lower personality domain overlap for children with higher IQ, in agreement with the differentiation hypothesis.