open access
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open access
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E-ISSN : 2733-4538
This study was performed to develop the short form of KIIP-C and identify it's reliability and validity. Applying two-parameter graded IRT model to adult standardization sample of KIIP, we calculated item discrimination, location parameter, and item information. Five most appropriate items from each scales, based on these three estimates, were identified and total 40 items composed KIIP-SC. Internal consistency reliability, test-retest reliability, and circumplex property of KIIP-SC was examined on university and adult standardization sample. Internal consistency reliability, .61～.89, and test-retest reliability, .58～.78, were both in proper range. Inter-correlation of 8 scale scores and the factor analysis results of individual ipsative scores showed that the circumplex property of KIIP-SC is appropriate. These results suggest the utility of KIIP-SC for measuring the interpersonal problems in settings where brevity is important and in situations involving the screening purpose.