This study examines, within the domain of science, the characteristics of words that predict word knowledge and word learning. The authors identified a set of word characteristics--length, part of speech, polysemy, frequency, morphological frequency, domain specificity, and concreteness--that, based on earlier research, were prime candidates to…

In this article, we share with readers our hopes, fears, and predictions for reading assessment in American schools at a critical policy juncture--the production of new assessments to measure achievement of the Common Core State Standards. It isn't just Partnership for Assessment of Readiness for College and Careers and Smarter Balanced…