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An abbreviated form of the WISC‐R: Is it valid?
Author(s) -
Resnick Robert J.
Publication year - 1977
Publication title -
psychology in the schools
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 75
eISSN - 1520-6807
pISSN - 0033-3085
DOI - 10.1002/1520-6807(197710)14:4<426::aid-pits2310140408>3.0.co;2-e
Subject(s) - psychology , intelligence quotient , wechsler adult intelligence scale , short forms , correlation , developmental psychology , clinical psychology , wechsler intelligence scale for children , candidacy , cognition , psychiatry , geometry , mathematics , politics , political science , law
The completed WISC‐Rs of 76 white urban children (6–0 to 15–9) were rescored utilizing the Satz and Mogel criteria for an abbreviated intelligence measure. Extremely high correlations for IQs (.96 – .98) and subtests (.66 – .95) were found. However, when mean differences between complete WISC‐R and the shortened form were examined, significant differences between administrations were found. Furthermore, one‐third of the subjects showed changes in intelligence classification levels when the abbreviated form was used. Thus, two of the three criteria previously suggested for a valid abbreviated intelligence test of: (a) a significantly high correlation between administration forms; (b) nonsignificant t ‐tests between the abbreviated and standard form mean IQ; and (c) low percentage of IQ classification change with the administration of the short form, were not met. It was concluded, however, that the abbreviated WISC‐R may be appropriate when intelligence is a question relative to candidacy for therapy or as a noncritical, general indication of intelligence when IQ classification is not important and/or assessment time is limited.