title: Cluster subtypes on the California verbal learning test-children's version after pediatric traumatic brain injury.
abstract: The purpose of this study is to determine the presence of profile subtypes on the California Verbal Learning Test-Children's Version (CVLT-C; Delis, Kramer, Kaplan, and Ober, 1994) in 175 children with traumatic brain injury (TBI). Four key z score variables are used in a 2-stage cluster analysis that reveal 4 reliable subtypes. No meaningful differences among the clusters are found on demographic variables. In contrast, statistically significant differences among the 4 clusters in both level and pattern of performance are found on injury severity parameters and the 4 factor index scores from an independent measure of psychometric intelligence (Wechsler Intelligence Scale for Children-Third Edition; Wechsler, 1991). This study concludes that although no unique profile is found on the CVLT-C after TBI in children, performance on this test is affected strongly by injury severity, with a mediating contribution by speed of information processing.
authors.affiliation: Mary Free Bed Rehabilitation Hospital, Grand Rapids, MI 49503, USA.
authors.forename: Lisa
authors.initials: L
authors.lastname: Mottram
authors.forename: Jacobus
authors.initials: J
authors.lastname: Donders
mesh_terms: D000293:Adolescent; D001924:Brain Concussion / Q000175:diagnosis / Q000523:psychology*; D020208:Brain Injury, Chronic / Q000175:diagnosis / Q000523:psychology*; D002648:Child; D016000:Cluster Analysis; D005260:Female; D006801:Humans; D015601:Injury Severity Score; D007360:Intelligence; D008297:Male; D008570:Memory, Short-Term; D009483:Neuropsychological Tests / Q000706:statistics & numerical data*; D011594:Psychometrics / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D014706:Verbal Learning; D014888:Wechsler Scales / Q000706:statistics & numerical data