A fundamental premise in assessment is that the underlying construct is equivalent across different groups of students and that this structure does not vary over years. The pandemic has potentially impacted opportunity to learn and disrupted the internal structure of assessments in various ways. Past research has suggested that students tended to…

This report examines the differences in impact estimates and standard errors that arise when these are derived using state achievement tests only (as pre-tests and post-tests), study-administered tests only, or some combination of state- and study-administered tests. State tests may yield different evaluation results relative to a test that is…

For the past 25 years, the Public Policy Forum has compiled and analyzed data from southeast Wisconsin's public school districts to produce an annual report on trends in educational performance and demographics. This year's report, however, may take on greater importance than those of previous years in light of the monumental impacts of the new…

Procedures are described for studying the reliability of decisions based on specific passing scores with tests made up of discrete items and designed to measure continuous rather than categorical traits. These procedures are based on the estimation of the joint distribution of true scores and observed scores. (CTM)

Because NAEP estimates of state-level achievement play an important role in the evaluation of strategies for improving the nation's educational system, it is important that these estimates have as small a standard error as possible. NAEP estimates for state-level achievement are based on measurement of the performance of a random sample of…