Adaptive and Tailored Testing (including IRT and Non-IRT Application


In computerized adaptive testing (CAT), a computer administers the items and gathers the examinee's responses, but its most distinctive feature is that the items finally administered depend on the examinee's ability. The test then adapts to the examinee's performance on the items. The idea of adaptive measurement can be traced back to Binet, but it never became a reality until the appearance of the item response theory (IRT) and the development of the computer. However, adaptive testing is also possible without IRT, as will be seen later. The first ideas on CAT appeared in the early 1970s (Lord, 1970). CAT has spent in the laboratory the greater part of the elapsed time since then, because the main concern of the researchers has been to obtain ...

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