In the absence of clear incentives, achievement tests may be subject to the effect of slipping where item response functions have upper asymptotes below one. Slipping reduces score precision for higher latent scores and distorts test developers' understandings of item and test information. A multidimensional four-parameter normal ogive model was…

Since its inception more than four decades ago, the National Assessment of Educational Progress (NAEP) has served as a key indicator of what the nation's students know and can do in academic subjects. NAEP assessments provide a mechanism for putting the achievements of students in all states on a common scale; the assessments also serve as…

Development of the Common Core State Standards (CCSS), and the creation of the Smarter Balanced Assessment Consortium (Smarter Balanced) and the Partnership for Assessment of Readiness for College and Careers (PARCC), changes the pattern of accountability testing. These changes raise the question: "How should NAEP's validity and utility be…