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Prediction of verbal, performance, and full scale IQs from seven subtests of the wais‐r
Author(s) -
Ward L. Charles
Publication year - 1990
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(199007)46:4<436::aid-jclp2270460411>3.0.co;2-m
Subject(s) - wechsler adult intelligence scale , psychology , intelligence quotient , wechsler preschool and primary scale of intelligence , short forms , wechsler intelligence scale for children , scale (ratio) , audiology , psychometrics , developmental psychology , statistics , clinical psychology , psychiatry , cognition , medicine , cartography , mathematics , geography
The Wechsler Adult Intelligence Scale‐Revised (Wechsler, 1981) was given to 70 male VA patients, and IQs were estimated from seven subtests that require about half the administration time of the full test. Estimates correlated well with Verbal, Performance, and Full Scale IQs, and mean estimated IQs differed by less than 1 IQ point from actual means. Error sizes in predicting Full Scale IQs were small ( M = 1.96) and exceeded 4 IQ points in only 3 cases. In comparison, error sizes for the Doppelt (1956) abbreviation ( M = 3.71) were significantly larger and were greater than 4 IQ points in 20 cases.