E-ISSN : 2733-4538
The purpose of this study was to examine validity of the K-WAIS-IV short forms and to investigate psychometric features of short forms. Four subtests form, two subtests form were constructed from K-WAIS-IV factor analysis in a standardization sample. Regression equations were used for calculation of estimated IQ. According to criteria of validity(Resnick & Entin, 1971), highly significant correlation was observed between Estimated IQ and full scale IQ. Mean difference between two IQs was not statistically significant, and effect size was also negligible. The percentage of agreement between short form and full scale in classifying subjects according to IQ categories was not high. The results were similar to those when divided by age groups and IQ levels. Psychometric features of short forms were examined. Subtests constructing short forms showed positive correlation with estimated IQ. Absolute error within 95% between two IQs was ±10, ±16, suggesting that K-WAIS-IV short forms should be used with caution.
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