Concurrent validity of the Wechsler abbreviated scale of intelligence and the Kaufman brief intelligence test among psychiatric inpatients.

Full Abstract

This study examined the convergent and discriminant validity of the Wechsler Abbreviated Scale of Intelligence and the Kaufman Brief Intelligence Test for 85 psychiatric inpatients. The correlation between the WASI Full Scale and K-BIT Composite IQ scores was significant (r = .89, p < .001). Multitrait-multimethod analysis of the subtest scores showed that the K-BIT had higher internal consistency for its two subtests but, therefore, less differentiation of cognitive functioning than the brief Wechsler scale, as would be expected due to the larger number and diversity of the latter subtests. Correlations among the Wechsler scale subtests were lower than among those for the K-BIT, so the former may tap different cognitive functions and yield more clinically useful information than the latter. This brief Wechsler scale appears to be a valid screening measure of verbal, performance. and general intellectual ability for use with an inpatient psychiatric population when considerations of the setting or patient preclude administration of a longer measure of intellectual ability.

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Author information

Author/s: Hays, J Ray (JR); Reas, Deborah L (DL); Shaw, J Bryant (JB);

Affiliation: University of Texas Houston Medical School, USA.

Journal and publication information

Publication Type: Comparative Study; Journal Article; Validation Studies

Journal: Psychological reports (Psychol Rep), published in United States. (Language: eng)

Reference: 2002-Apr; vol 90 (issue 2) : pp 355-9

Dates: Created 2002/06/13; Completed 2002/07/16; Revised 2006/11/15;

PMID: 12061569, status: MEDLINE (last retrieval date: 12/26/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult
Cognition Disorders - diagnosis; epidemiology
Female
Hospitalization
Hospitals, Psychiatric
Humans

Humans
Intelligence Tests - standards
Male
Mental Disorders - rehabilitation
Reproducibility of Results
Wechsler Scales - standards

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