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A Comparison Study Of The Wisc-Iii And Wisc-R With A Special Education Population, Henry P. Green
A Comparison Study Of The Wisc-Iii And Wisc-R With A Special Education Population, Henry P. Green
Student Work
The purpose of this study was to determine the degree of comparability between the WISC-R and the WISC-III over a three year period. The subjects were 207 children, 124 Learning Disabled, 51 Mental Disabled, and 32 Behavior Disabled, enrolled in special education, in a large urban district (Omaha, Nebraska) and several rural districts in southwest Iowa. Results from the comparison study between WISC-III and WISC-R supports the hypothesis that students in the special education population tend to have significantly lower IQs on the WISC-III than the WISC-R. A significant decrease in Full Scale IQ scores was found in the mental …
Stability Of Wisc-R Scores Between Triennial Evaluations Of Learning Disabled Students, Norman J. Wozny
Stability Of Wisc-R Scores Between Triennial Evaluations Of Learning Disabled Students, Norman J. Wozny
Student Work
Recent studies of intelligence test score stability among learning disabled children have reported adequate stability when correlational and analysis of variance (ANOVA) techniques were used. However, less than adequate score stability has been found when individual scores were examined. The present study explores the test-retest stability of the Wechsler Intelligence Scale for Children (WISC-R) using three statistical methods: Pearson product-moment correlation, analysis of variance, and an examination of individual scores. Regression to the mean is also examined. While reasonably high levels of stability are concluded by the Pearson product-moment correlations, significant drops in Verbal and Full Scale IQ scores between …