The emergence of digital-first assessments is prompting reconsideration of, and innovation in, aspects of psychometrics, test validation, and test use. Using the Duolingo English Test (DET) as an example, this three-paper series seeks to address issues concerning the estimation of classification consistency and the reporting of results for such…

Research has found that the "a"-stratified item selection strategy (STR) for computerized adaptive tests (CATs) may lead to insufficient use of high a items at later stages of the tests and thus to reduced measurement precision. A refined approach, unequal item selection across strata (USTR), effectively improves test precision over the…

Stepstone's educational leaders knew they needed a research-based assessment to support differentiation and track performance against rigorous state standards. They chose computer adaptive MAP® Growth™ K-2 to keep the team's mix of face-to-face and technology-based instruction focused on student learning and growth. MAP Growth K-2 reinforces…