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…

The discussion here covers five articles that are linked in the sense that they all treat population invariance. This discussion of population invariance is a somewhat broader treatment of the subject than simply a discussion of these five articles. In particular, occasional reference is made to publications other than those in this issue. The…

Educational assessment and, more broadly, educational research in the United States have entered into an era characterized by a dramatic increase in the prevalence and importance of test score use in accountability systems. This volume covers a selection of contemporary issues about testing science and practice that impact the nation's public…

This article discusses the five studies included in this issue. Each article addressed the same topic, population invariance of equating. They all used data from major standardized testing programs, and they all used essentially the same statistics to evaluate their results, namely, the root mean square difference and root expected mean square…

The National Assessment of Educational Progress (NAEP) measures the educational achievement of nationally representative samples of students in grades 4, 8, and 12. Local educational agencies tend to view the NAEP as a benchmark to which the educational achievement of their students can be compared. In particular, state departments of education…

The National Education Association's Task Force on Testing has stated its opinion that standardized tests are overused. The task force suggests that the application of sampling techniques and a variety of alternatives to current testing practices would accomplish the same purposes. Representatives of the testing industry have indicated that the…

The purposes for which test data should be used were described as: test should provide a learning experience for the child taking the test, the teacher giving the test, and the parents of the child. It should also provide information useful to school administrators, school boards, and state and national educational agencies. The state-mandated…

The operational preparations for the Dutch national assessment program in education started in 1986. The program's aim is to periodically describe the contents of the curriculum in use and the attainment of 8-year-old and 11-year-old students on a national basis by means of surveys. In this paper some of the guiding principles in instrument…