Search Results       Your search for [subject]Verbal behavior -- Longitudinal studies returned 1 record.           What, when, and how about why : a longitudinal study of early expressions of causality. by Hood, Lois; Chicago: Published by the University of Chicago Press for the Society for Research in Child Development, 1979. Subject: Verbal behavior -- Longitudinal studies; Causation; Cognition in children -- Longitudinal studies.          Add to Book Cart Relevance: 30.43%