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…

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…

Current educational policy highlights the important role that assessment can play in improving education. State standards and the assessments that are aligned with them establish targets for learning and promote school accountability for helping all students succeed; at the same time, feedback from assessment results is expected to provide …

This study examined state and national benchmarks and standards for K-12 science instruction, curricular goals, and objectives for K-12 science, state, and national assessments that measure student achievement in science and student use of computers and technology for science in grades K-12. The study used survey data and student achievement…

The results of the achievement testing program of the Alberta (Canada) public schools are reported for the June 1991 administrations. The 1991 results help demonstrate what is possible for students in grades 3, 6, and 9 to know and do in science, mathematics, and social studies. For the first time, results are reported in terms of curriculum…