학술논문
Comparison of linear equating and prorated short forms for estimating WAIS-R FSIQ in a neuropsychological population.
Document Type
Academic Journal
Author
Engelhart CI; Veterans Affairs New Jersey Health Care System, Lyons 07939, USA. engelhart@east-orange.va.gov; Eisenstein N; Johnson V; Losonczy M
Source
Publisher: Psychology Press Country of Publication: England NLM ID: 8806548 Publication Model: Print Cited Medium: Print ISSN: 1385-4046 (Print) Linking ISSN: 13854046 NLM ISO Abbreviation: Clin Neuropsychol Subsets: MEDLINE
Subject
Language
English
ISSN
1385-4046
Abstract
Comparisons were made of estimates of the Wechsler Adult Intelligence Scale - Revised Full Scale IQ using the two-,three- and four-subtest linear equating procedures of Kaufman (1990) and Booker and Cyr (1986) with FSIQ estimates using prorating to obtain FSIQ scores. The advantage of prorating is that it affords greater clinical flexibility in selection of subtests. The participants were 64 neuropsychiatric patients who completed the full WAIS-R from which short form and FSIQ were calculated. Prorating yielded estimates of mean IQ and categorization of IQ comparable to IQs obtained by linear equating, though there was an increased likelihood of disparate results with extreme IQ scores. Prudent clinical judgment is recommended for situations involving unusual or extreme scaled score patterns, particularly when the number of subtests is small.