Cluster subtypes in the standardization sample of the California verbal learning test-children's version

Representative profile subtypes, based on 5 key z-score variables, were exa mined in the standardization sample of the California Verbal Learning Test- Children's Version (CVLT-C; Delis, Kramer, Kaplan, & Ober, 1994). Two-stage cluster analysis identified 5 reliable subtypes. Both level and pattern of performance differences contributed to differentiation of the subtypes. Th e clusters did not differ significantly in age, but educational background of the children and of their parents, as well as level of performance on an independent measure of problem solving (Children's Category Test; Bell, 19 93), did covary directly with CVLT-C performance. Guidelines for determinin g the relative uniqueness of clinically obtained CVLT-C patterns are presen ted.