Computer adaptive testing (CAT) is an increasingly common mode of test administration offering improved test security, better measurement precision, and the potential for shorter testing experiences. This article presents a new item selection algorithm based on a generalized objective function to support multiple types of testing conditions and…

Evaluated the effectiveness of vocabulary computerized adaptive tests (CATs) with restricted review in a live testing setting involving 242 college students in which special efforts were made to increase test efficiency and reduce the possibility of obtaining positively biased proficiency estimates. Results suggest the efficacy of allowing limited…

Studied effects of administration mode [computer adaptive test (CAT) versus self-adaptive test (SAT)], item-by-item answer feedback, and test anxiety on results from computerized vocabulary tests taken by 293 college students. CATs were more reliable than SATs, and administration time was less when feedback was provided. (SLD)

Reviews research literature on comparability issues in computerized adaptive testing (CAT) and synthesizes issues specific to comparability and test security. Develops a framework for evaluating comparability that contains three categories of criteria: (1) validity; (2) psychometric property/reliability; and (3) statistical assumption/test…