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Base rates of the wais‐r intersubtest scatter and viq‐piq discrepancy in normal elderly
Author(s) -
Mitrushina Maura,
Satz Paul
Publication year - 1995
Publication title -
journal of clinical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.124
H-Index - 119
eISSN - 1097-4679
pISSN - 0021-9762
DOI - 10.1002/1097-4679(199501)51:1<70::aid-jclp2270510112>3.0.co;2-i
Subject(s) - psychology , wechsler adult intelligence scale , sample (material) , abnormality , statistics , intelligence quotient , clinical psychology , mathematics , social psychology , cognition , physics , psychiatry , thermodynamics
This study provides base rates for WAIS‐R VIQ‐PIQ discrepancy and for 3 indices of intersubtest scatter in a sample of high functioning normal elderly. High correlations between indices of scatter, such as (1) range of scatter; (2) Profile Variability Index; and (3) number of subtest scores that significantly deviated from the individual's own mean, indicate that easy‐to‐compute range can be used as an adequate measure of scatter in many clinical settings. The results suggest that bright elderly individuals display a large degree of scatter. The clinician should base judgment regarding abnormality of the WAIS‐R indices on the rarity of the value demonstrated by the individual with respect to the sample of comparable age and intelligence level.