手法を比較

	コンピュータ適応型テスト（CAT）尺度開発	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	Frederic Lord (IRT foundations); CAT systems developed at ETS and ACT in the 1970s–1980s	Lord, F. M.; further developed by Wainer, van der Linden, and others
種類	Measurement design and test construction	Adaptive measurement / sequential testing
原典	Wainer, H., Dorans, N. J., Flaugher, R., Green, B. F., Mislevy, R. J., Steinberg, L., & Thissen, D. (2000). Computerized Adaptive Testing: A Primer (2nd ed.). Lawrence Erlbaum Associates. ISBN: 978-0805835113	Wainer, H. (Ed.). (2000). Computerized Adaptive Testing: A Primer (2nd ed.). Lawrence Erlbaum Associates. ISBN: 978-0805835113
別名	CAT scale construction, adaptive test development, computerized adaptive testing scale design, CAT item bank development	CAT-IRT, adaptive testing, IRT-based CAT, computerized adaptive testing
関連	5	4
概要	Computerized adaptive test (CAT) scale development is the process of constructing, calibrating, and validating a large item bank such that the assessment algorithm can select items tailored to each examinee's estimated ability or trait level in real time. The result is a measurement instrument that achieves high precision with fewer items than a conventional fixed-form test.	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.