This study investigated the application of multidimensional item response theory (IRT) models to validate test structure and dimensionality. Multiple content areas or domains within a single subject often exist in large-scale achievement tests. Such areas or domains may cause multidimensionality or local item dependence, which both violate the…

In large-scale assessments, such as state-wide testing programs, national sample-based assessments, and international comparative studies, there are many steps involved in the measurement and reporting of student achievement. There are always sources of inaccuracies in each of the steps. It is of interest to identify the source and magnitude of…

The purpose of this document is to establish the statewide policy for the participation of students in the Utah Performance Assessment System for Students (U-PASS). The central elements of this policy are: (1) Rules for inclusion in the statewide assessment program (U-PASS); (2) Limited allowances for exempting or excusing students from…

Large-scale assessment programs rely on teachers to administer the tests and to interpret and communicate the results. Consequently, it is important that teachers have up-to-date knowledge about the testing programs. Education Departments' web sites are ideal tools for communicating such information to teachers. The web sites of Education…