Assessing educational outcomes is a matter of great importance for everyone in a society that relies primarily on public schools to shape the next generation of citizens. Given the vital nature of this task, it is imperative that the researchers who undertake it have an informed understanding of the measures used to evaluate educational outcomes.…

"Classroom Assessment in Action" clarifies the multi-faceted roles of measurement and assessment and their applications in a classroom setting. Comprehensive in scope, Shermis and Di Vesta explain basic measurement concepts and show students how to interpret the results of standardized tests. From these basic concepts, the authors then…

When the Educational Testing Service became the administrator of the National Assessment of Educational Progress (NAEP) in 1983, it introduced scales based on item response theory (IRT) as a way of presenting results of the assessment to the general public. Some properties of the scales and their uses are discussed. Initial attempts at presenting…

An expanded framework for validating tests is needed to include the perspectives of teachers and students as well as of test makers and scientists. The development of educational assessments must take place within an understanding of how tests are used in context. (SLD)

Issues in the misuse of standardized test scores are discussed. While information misuse is not a problem unique to testing, it is particularly prevalent. Information can be a source of power, and politically motivated uses of information explain part of the misuse of test scores. Other misuses have historical roots in the exaggerated claims of…