A comparison of the performance of cognitively disabled children on the WISC-R and WISC-III.
This study compared differences in performance on the WISC-III and on the WISC-R. Sixty-one students with learning impairments, due for reevaluation of their special education placement, were administered the WISC-III as part of a psychological assessment battery. Results indicate a mean difference between WISC-R and WISC-III FSIQ of 7.95 points, which is similar to WISC/WISC-R comparisons. Substantial differences that averaged 9.21 points were found between WISC-R and WISC-III PIQ means. These findings suggest that for a special education sample an average decrease of at least 8 points can be expected on the WISC-III Full Scale IQ. Caution should be exercised when one is considering changes in educational classification or interpreting qualitative differences in performance on WISC-III scores compared with WISC-R scores.
Bolen
L M
LM
Department of Psychology, East Carolina University, Greenville, NC 27858-4354, USA.
Aichinger
K S
KS
Hall
C W
CW
Webster
R E
RE
D000293:Adolescent; D000342:Affective Symptoms / Q000145:classification / Q000175:diagnosis / Q000523:psychology; D002648:Child; D004495:Education of Persons with Intellectual Disabilities; D004519:Education, Special; D004608:Eligibility Determination; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000145:classification / Q000175:diagnosis / Q000523:psychology; D007360:Intelligence; D007859:Learning Disabilities / Q000145:classification / Q000175:diagnosis* / Q000523:psychology; D008297:Male; D011594:Psychometrics; D014888:Wechsler Scales / Q000706:statistics & numerical data*