E-ISSN : 2733-4538
There were many complaints to the K-WAIS among clinicians for 1) too low IQ scores in the young subjects and too high IQ scores in the old subjects, 2) too large differences of IQ scores among age categories, and 3) being impossible to analysis the scatters. In this study, the KWIS and the K-WAIS norms were examined to decide whether these complaints were justified or not. Such variables as raw scores, scaled scores, within-group variabilities, and sample sizes of two norms were investigated. In the result, it was suspected that the K-WAIS had serious problems for standardized IQ test and clinicians' distrust was based on reality. The causes of the validity problems of the K-WAIS were searched and resolutions were suggested.
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