Abstract
To obtain the most accurate results of the Wechsler Intelligence Scale for Children—Revised (WISC-R), Wechsler (1974) standardized the instrument using six demographic variables. One variable that was not considered in the standardization was grade level. The current study assessed the differences in IQ scores of 6-year-old children who were at different grade levels. A total of 40 children were assessed with the WISC-R. The sample included 20 first-grade and 20 kindergarten students. Analyses of variance indicated significant differences between grade levels in full-scale and verbal IQs, suggesting the need for grade level to be considered as a standardization variable. The study also indicated gender differences between and within the groups.
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References
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Wechsler, D. (1974). Manual for the Wechsler Intelligence Scale for Children—Revised. New York: Psychological Corporation.
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Carvajal, H.H., Roth, L.A., Holmes, C.B. et al. The effect of grade level on WISC-R IQs of 6-year-olds. Bull. Psychon. Soc. 30, 317–318 (1992). https://doi.org/10.3758/BF03330478
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DOI: https://doi.org/10.3758/BF03330478