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A comparison of the Shipley vs. WAIS‐R subtests in predicting WAIS‐R Full Scale IQ
Author(s) -
Dalton John E.,
Pederson Sanford L.,
McEntyre Wand A. L.
Publication year - 1987
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(198703)43:2<278::aid-jclp2270430220>3.0.co;2-d
Subject(s) - wechsler adult intelligence scale , psychology , intelligence quotient , short forms , regression , population , correlation , intellectual ability , regression analysis , developmental psychology , statistics , clinical psychology , psychiatry , mathematics , demography , cognition , psychoanalysis , geometry , sociology
The Shipley and WAIS‐R were administered to a diverse psychiatric and neurologic sample of 186 males. Estimates of Full Scale WAIS‐R IQ obtained from the Shipley regression equation of Zachary, Crumpton, and Spiegel (1985) yielded a correlation of .73 with WAIS‐R IQ, considerably lower than the .85 and .87 reported by the authors. Development of a new regression equation with more variables did not yield a significantly higher correlation. Several individual subtests or pairs of subtests provided equal or better estimates of WAIS‐R IQ within the same population and required less administration time. The Shipley is recommended as an adequate IQ estimate when individual testing is not feasible.