The Researches on IRT-Based Computerized Adaptive Test

摘要

This paper describes the use of computerized adaptive testing system to select the most appropriate adaptive exam test items and in the same measure on the ability to calculate their value. Item response theory and computerized adaptive testing system theory, adaptive tests commonly used by the mathematical model -Logistic model analysis, elaborated on the questions and to obtain parameter estimates, based on ability and the difficulty of matching algorithm topics，gives a B / S Based adaptive Testing System design, construct a framework for online examination system structure.