Frequency of occurrence of four- and five-factor WAIS-IV profiles.
Autor: Ryan, Joseph J.; Kreiner, David S.; Gontkovsky, Samuel T.; Golden, Charles J.; Myers-Fabian, Allison
Publication year: 2020
Applied neuropsychology. Adult
issn:2327-9109 2327-9095
doi: 10.1080/23279095.2018.1550411
Abstract:
Interpretive strategies for the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV) include Wechsler’s four-factor structure and the five-factor Cattell-Horn-Carroll (CHC) model. The frequency of profile occurrence and the contribution of demographic- and ability-related variables to their incidence are unknown. Current participants were 291 referrals (males = 134; female = 157) for neuropsychological evaluation with mean years for age and education of 34.94 (SD = 13.53) and 12.74 (SD = 2.46), respectively. Lichtenberger and Kaufman’s guidelines for selecting each model were applied. Of the total, 67.3% were four-factor and 32.6% were five-factor profiles. The same pattern emerged when participants were subdivided by gender, education, ethnicity, IQ, and diagnosis. A noteworthy association between IQ and profile type emerged. When IQ increased, four-factor profiles declined and five-factors increased. A logistic regression, using demographics, IQ, and diagnosis as predictors, correctly classified 64.8% of participants. The average subtest intercorrelations and g saturations in the four-factor group were substantially larger than those for five-factor participants. These findings were consistent with Spearman’s differentiation by ability hypothesis.
Language: eng
Rights:
Pmid: 30633589
Tags: Humans; Female; Male; Adult; Middle Aged; Factor Analysis, Statistical; factor analysis; Aptitude/*classification; Cattell-Horn-Carroll Theory; Intelligence/*classification; Wechsler Adult Intelligence Scale-Fourth Edition; Wechsler Scales/*statistics & numerical data
Link: https://pubmed.ncbi.nlm.nih.gov/30633589/
