TY - JOUR
T1 - Estimating premorbid IQ from demographic variables
T2 - Regression equations derived from a UK sample
AU - Crawford, J. R.
AU - Stewart, L. E.
AU - Cochrane, R. H.B.
AU - Foulds, J. A.
AU - Besson, J. A.O.
AU - Parker, D. M.
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1989/9
Y1 - 1989/9
N2 - The purpose of the study reported here was to build regression equations for the estimation of premorbid IQ from demographic variables in a UK population. Subjects (n = 151) free of neurological, psychiatric or sensory disability, were administered the Wechsler Adult Intelligence Scale (WAIS) and had their demographic details recorded (age, sex, occupation and education). WAIS Full Scale (FSIQ), Verbal (VIQ), and Performance IQ (PIQ) were regressed on the demographic variables. The regression equations generated by this procedure predicted 50, 50, and 30 per cent of the variance in FSIQ, VIQ, and PIQ respectively. These equations should provide a convenient and useful supplement to psychometric estimates of premorbid IQ. Unlike psychometric estimates, demographic estimates are entirely independent of a patient's current cognitive status. 1989 The British Psychological Society
AB - The purpose of the study reported here was to build regression equations for the estimation of premorbid IQ from demographic variables in a UK population. Subjects (n = 151) free of neurological, psychiatric or sensory disability, were administered the Wechsler Adult Intelligence Scale (WAIS) and had their demographic details recorded (age, sex, occupation and education). WAIS Full Scale (FSIQ), Verbal (VIQ), and Performance IQ (PIQ) were regressed on the demographic variables. The regression equations generated by this procedure predicted 50, 50, and 30 per cent of the variance in FSIQ, VIQ, and PIQ respectively. These equations should provide a convenient and useful supplement to psychometric estimates of premorbid IQ. Unlike psychometric estimates, demographic estimates are entirely independent of a patient's current cognitive status. 1989 The British Psychological Society
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U2 - 10.1111/j.2044-8260.1989.tb01377.x
DO - 10.1111/j.2044-8260.1989.tb01377.x
M3 - Article
C2 - 2790320
AN - SCOPUS:0024431759
SN - 0144-6657
VL - 28
SP - 275
EP - 278
JO - British Journal of Clinical Psychology
JF - British Journal of Clinical Psychology
IS - 3
ER -