手法を比較

	コンピュータ適応型テスト信頼性分析	項目応答理論（IRT）に基づくコンピュータ適応型テスト（CAT-IRT）
分野	心理測定学	心理測定学
系統	Latent structure	Latent structure
提唱年	1970s–1980s	1970s–1980s
提唱者	David J. Weiss and IRT psychometricians	Lord, F. M.; further developed by Wainer, van der Linden, and others
種類	Reliability estimation under adaptive testing	Adaptive measurement / sequential testing
原典	Weiss, D. J. (1984). Application of computerized adaptive testing to educational problems. Journal of Educational Measurement, 21(4), 361–375.	Wainer, H. (Ed.). (2000). Computerized Adaptive Testing: A Primer (2nd ed.). Lawrence Erlbaum Associates. ISBN: 978-0805835113
別名	CAT reliability, adaptive test reliability, IRT-based reliability estimation, marginal reliability in CAT	CAT-IRT, adaptive testing, IRT-based CAT, computerized adaptive testing
関連	4	4
概要	CAT reliability analysis quantifies measurement precision in computerized adaptive tests where each examinee receives a unique, individually tailored subset of items. Rather than a single classical coefficient, it uses item response theory to express precision as conditional standard error of measurement at each ability level, and marginal reliability as a global summary across the ability distribution.	Computerized adaptive testing based on item response theory is a sequential measurement procedure in which a computer algorithm selects successive test items tailored to each examinee's estimated ability level. Drawing on IRT to model item characteristics and ability estimation, CAT delivers precise scores with far fewer items than fixed-length tests, making it efficient for high-stakes assessments, clinical screening, and large-scale surveys.