A great deal has been written on the topic of test validity. Guiding our work at ACT are "The Standards for Educational and Psychological Testing" (2014), which outlines best practices in test development and validation. As ACT transitions from an assessment company to a learning, measurement, and navigation organization, a framework for…

The research note focuses on the alignment aspect of English language proficiency (ELP) assessments, one of the required types of validity evidence for the federal peer review process of states' assessment systems. A basic tenant of current U.S. education policy is the alignment between what a test assesses and what content has been determined as…

Many of the instruments developed for research use by the chemistry education community are relatively new. Because psychometric evidence dictates the validity of interpretations made from test scores, gathering and reporting validity and reliability evidence is of utmost importance. Therefore, the purpose of this study was to investigate what…

This chapter introduces theory that undergirds the role of testing adaptations in assessment, provides examples of item modifications and testing accommodations, reviews research relevant to each, and introduces a new paradigm that incorporates opportunity to learn (OTL), academic enablers, testing adaptations, and inferences that can be made from…