项目反应理论和自适应测试的ppt课件
An Introduction to Item Response Theory and Computerized Adaptive Test
Nathan Thompson主讲 （Assessment Systems Corporation副总裁）
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具体内容包括：
Models (dichotomous and polytomous) and their response functions
IRT scoring (θ estimation)
Item parameter estimation and model fitItem and test information
Comparison of IRT to Classical Test Theory and its methods
How to do IRT analysis
Basic principles of CAT (the five components)
Benefits of CAT
CAT for point estimates of ability and measuring individual change
CAT for classifications
Non-fully adaptive CAT methods (multistage, testlets)
Practical constraints: test length, content balancing, item exposure
Advanced methods: item selection, CDMs
CAT research and design (simulations)
Linking and Equating
Polytomous IRT
DIF
IRT Software outline
Item banking
CAT delivery
How to develop a CAT