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…

Evaluation researchers and practitioners acknowledge that involving stakeholders in the planning and implementation of an evaluation increases buy-in, understanding, and use. With the recent increase in multi-site evaluations of large federal programs, evaluators must think differently about how to encourage meaningful collaboration by…

This paper is the final report of a multi-year project sponsored by the Office of Naval Research (ONR) in 1987 through 1990. The main objectives of the research summarized were to: investigate the non-parametric approach to the estimation of the operating characteristics of discrete item responses; revise and strengthen the package computer…