Correlational subjects Correlational subject: Clever Classification path: PERSONALITY: CURRENT TRAITS Clever Related subjects List of Findings on this Subject Correlate as named by investigator People investigated Finding Open-minded; accuracy in thinking Mothers, followed from age 30 to 70, Berkeley USA, 1928-68 Intelligent; interested in child Mothers, followed from age 30 to 70, Berkeley USA, 1928-68