手法を比較

	コンピュータ化適応型テスト（CAT）における弁別的妥当性	収束的妥当性
分野	心理測定学	心理測定学
系統	Latent structure	Latent structure
提唱年	1959 (discriminant validity); CAT application from 1990s onward	1959
提唱者	Campbell & Fiske (discriminant validity framework); applied to CAT by educational measurement researchers	Donald T. Campbell & Donald W. Fiske
種類	Validity evaluation technique	Validity evidence / construct validation
原典	Weiss, D. J. (2004). Computerized adaptive testing for effective and efficient measurement in counseling and education. Measurement and Evaluation in Counseling and Development, 37(2), 70–84.	Campbell, D. T., & Fiske, D. W. (1959). Convergent and discriminant validation by the multitrait-multimethod matrix. Psychological Bulletin, 56(2), 81–105.
別名	CAT discriminant validity, adaptive test divergent validity, CAT scale differentiation, CAT construct separation	convergent construct validity, convergence validity, AVE-based convergent validity
関連	5	4
概要	Discriminant validity in computerized adaptive testing (CAT) is the evaluation process confirming that a CAT-administered scale measures its intended construct distinctly from related but conceptually different constructs. Despite the adaptive item-selection mechanism varying each respondent's item set, evidence must be provided that CAT-derived scores do not overlap excessively with scores from theoretically distinct scales.	Convergent validity is the degree to which multiple indicators that are theoretically expected to measure the same construct actually correlate with one another. It is one of the two complementary forms of construct validity identified by Campbell and Fiske (1959) and is now routinely assessed via factor loadings and the Average Variance Extracted (AVE) statistic in SEM-based scale validation.