Effects of prior testing with the WAIS-R NI on subsequent retest with the WAIS-R

Abstract

Seven subtests from the Wechsler Adult Intelligence Scale, Revised as a Neuropsychological Instrument (WAIS-R NI) were administered to 20 nonreferred university students. The same participants were administered the corresponding subtests from the WAIS-R 3 to 4 weeks later. Data concerning amount and consistency of change in 'scaled scores' were compared to those reported by Wechsler (1981) for test-retest with the WAIS-R. Performance on standard items was also compared to performance on multiple choice items from the WAIS-R NI. Gains observed in subtest 'scaled scores' at retest were comparable to those reported by Wechsler (1981). A substantial minority of participants obtained lower scores on some multiple choice items than they did on corresponding standard items. Implications and limitations of the current data, and the pressing need for comprehensive normative data for the WAIS-R NI are discussed.

Working Memory and Intelligence Are Associated with Victoria Symptom Validity Test Hard Item Performance in Patients With Intractable Epilepsy

“…Keary et al Validity Test (VSVT;Slick et al, 1997), Wechsler Adult Intelligence Scale-Third Edition (WAIS-III; Wechsler, 1997a), and Wechsler Memoty Scale-Third Edition (WMS-UI; Wechsler, 1997b).…”

“…The VSVT manual provides recotnmended cut-off scores for hard memory items on the basis of binomial probability theory (Slick et al, 1997; see also Slick, Strauss, & Spellacy, 1996); hard item scores that are significantly above chance (i.e., 16-24), at chance (i.e., 8-15), and below chance (i.e., 0-7) have suggested interpretations of valid, questionable, and invalid, respectively. However, the VSVT hard item cutscores used in the present investigation were those that were pt-eviously identified as maximally efficient in discriminating between compensation-seeking patients involved in personal injury lawsuits and non-compensation-seeking patients with medically intractable epilepsy (Grote et al, 2000).…”

“…The Victoria Symptom Validity Test (VSVT; Slick, Hopp, Strauss, & Thompson, 1997) is a forced-choice recognition task used to evaluate the validity of a patient's cognitive impairments, particularly self-reported memory deficits. On average, patients in a general clinical setting seeking compensation perform more poorly on the VSVT than their non-compensation-seeking counterparts (Doss, Chelune, & Naugle, 1999;Grote et al, 2000).…”

Illness Perceptions Predict Cognitive Performance Validity

“…All 183 participants were administered the Word Memory Test (WMT; Green, 2005), while a subsample of 81 examinees were also administered one additional stand-alone measure of cognitive performance validity including the Test of Memory Malingering (TOMM; Tombaugh, 1996), or the Victoria Symptom Validity Test (VSVT; Slick, Hopp, Strauss, & Thompson, 1997). Additional embedded performance validity measures were also administered, but differed among the four laboratories based upon each laboratory's specific clinical practice and research needs.…”