polytomous adaptive testing (PAT).This dissertation is an e ort to focus on item selection methods, as a major component … of certain item selection methods in adaptive testing. Two approaches are used toderive the proposed LIs, one is based on … belongs to the non-information based item selection methods and we referred it as Matching-LI method. The results support that …

subsequent ability estimates. The solution is to find an alternative item selection procedure or an appropriate ability … polytomous IRT models.The present study compared the performance of four item selection procedures (MI, MPWI, MEI, and MEPV … of selected-test-unit overlap.Results suggested that all item selection procedures, regardless of ability estimation …