We describe the summative assessment component within a K-12 assessment program and our development of a validity argument to support its claims with respect to intended uses and interpretations. First, we describe the "Winsight"® assessment program theory of action, a logic model elucidating mechanisms for how use of the assessment…

The number of public school students who are English learners (ELs) has been increasing steadily in the United States. According to a report by Snyder, de Brey, and Dillow (2016), in the 2014-2015 school year, nearly 4.6 million students enrolled in Kindergarten through grade 12 (K-12) in U.S. schools were English learners, representing…