Concurrent validity of the Missouri Children's Picture Series.

Administered the Missouri Children's Picture Series, a nonverbal objective test of personality to a group of normal (N = 119) children and a group of institutionalized (N = 77) aggressive children. Several of the test scales differed significantly between the two groups. The test scales of Aggression and Maturity showed the most consistent and largest differences; the institutionalized children scored, as a group, higher on Aggression and lower on Maturity Level. IQ was found to be unrelated to test scores among the normal children, but was related significantly to personality test scores among the institutionalized children.