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Titolo:
An evaluation of the sensitivity of premorbid IQ estimators for detecting cognitive decline
Autore:
Graves, RE; Carswell, LM; Snow, WG;
Indirizzi:
Univ Victoria, Dept Psychol, Victoria, BC V8W 3P5, Canada Univ Victoria Victoria BC Canada V8W 3P5 ol, Victoria, BC V8W 3P5, Canada
Titolo Testata:
PSYCHOLOGICAL ASSESSMENT
fascicolo: 1, volume: 11, anno: 1999,
pagine: 29 - 38
SICI:
1040-3590(199903)11:1<29:AEOTSO>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
ADULT READING TEST; NORMAL OLDER PERSONS; WAIS-R IQ; VERBAL INTELLIGENCE; CROSS-VALIDATION; INDEX; ACCURACY; ABILITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Graves, RE Univ Victoria, Dept Psychol, POB 3050, Victoria, BC V8W 3P5, Canada Univ Victoria POB 3050 Victoria BC Canada V8W 3P5 W 3P5, Canada
Citazione:
R.E. Graves et al., "An evaluation of the sensitivity of premorbid IQ estimators for detecting cognitive decline", PSYC ASSESS, 11(1), 1999, pp. 29-38

Abstract

Twenty-two studies were reviewed that estimated Wechsler Adult Intelligence Scale (WAIS/WAIS-R; D. Wechsler, 1981) IQs for normal individuals using demographic regression equation estimators and/or ability estimators such asthe National Adult Reading Test. None of these studies originally reportedthe sensitivity of their method for detecting cognitive decline. The potential utility of each method was quantified by using psychometric theory to calculate the magnitude of cognitive decline that could be reliably detected. Results showed that for a cognitive decline in WAIS-R Verbal Scale IQ (VIQ) to be detected 80% of the time, the decline would have to be at least 25 VIQ points for demographic predictor methods, and at least 20 VIQ points for reading test predictor methods. Implications of the limited sensitivityof these methods for clinical applications are discussed and interpretation recommendations are provided.

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Documento generato il 27/01/20 alle ore 16:45:07