This article aims to provide a theoretical framework for computerized adaptive tests (CAT) and item response theory models for polytomous items. Besides that, it aims to introduce the simulation and live CAT software to the related researchers. Computerized adaptive test algorithm, assumptions of item response theory models, nominal response…

The constructive use of microcomputers in the development of tests requires thoughtful attention to the questions addressed in this paper: What is the purpose for testing? How can a microcomputer help? Which microcomputer system is best? What pitfalls should be avoided? (BW)