Shifting to an inquiry-based practice can be challenging. How should teachers get started? How many times should teachers plan for inquiry? What do teachers do when students struggle with inquiry? How long does it take for students to buy in to the inquiry process? These kinds of questions, and the concerns that underlie them, can create an…

This direct replication study compared the use of dichotomized likelihood ratios and interval likelihood ratios, derived using a prior sample of students, for predicting math risk in middle school. Data from the prior year state test and the Measures of Academic Progress were analyzed to evaluate differences in the efficiency and diagnostic…

Four-parameter models have received increasing psychometric attention in recent years, as a reduced upper asymptote for item characteristic curves can be appealing for measurement applications such as adaptive testing and person-fit assessment. However, applications can be challenging due to the large number of parameters in the model. In this…