Based on the framework of testlet models, the current study suggests the Bayesian random block item response theory (BRB IRT) model to fit forced-choice formats where an item block is composed of three or more items. To account for local dependence among items within a block, the BRB IRT model incorporated a random block effect into the response…

Research Findings Research suggests children from low-income environments have vocabularies that differ from those of their higher-income peers. They may have basic knowledge of many words of which children from higher income environments have acquired sub- or supra-ordinate knowledge. This study sought to determine if children from low-income…

This study investigated the effects of three aspects of language testing (test task, familiarity with an interviewer, and test method) on both tester and tested. Data were drawn from several previous studies by the researcher. Concerning test task, data were analyzed for the type of topic students wanted most to talk about or preferred not to talk…