The POWERSOURCE[c] intervention is intended as a generalizable and powerful formative assessment strategy that can be integrated with any mathematics curriculum. POWERSOURCE[c] includes both a system of learning-based assessments and an infrastructure to support teachers' use of those assessments to improve student learning. The core undertaking…

The POWERSOURCE[c] intervention is a generalizable and powerful formative assessment-based strategy that can be integrated with any ongoing mathematics curriculum to improve teachers' knowledge and practice and, in turn, student learning. Our primary research objectives are based on our hypotheses that as a result of POWERSOURCE[c], teachers will…

The evaluation of educational interventions requires assessments that consistently (reliably) produce data from which accurate (valid) inferences about the test subjects can be made for some stated purpose. Despite codified definitions of all these terms, there remains vibrant debate about the assessment design process and how measures of…

This report describes results from field-testing of POWERSOURCE[C] formative assessment alongside professional development and instructional resources. The researchers at the National Center for Research, on Evaluation, Standards, & Student Testing (CRESST) employed a randomized, controlled design to address the following question: Does the…

To help teachers who must produce test items to measure instructional objectives, 54 teacher education candidates participated in an experiment where easily understood constraints on item production were manipulated. Four forms of a test item writing exercise sheet were randomly distributed, each asking for the production of eight sample test…

The expected tendencies toward greater homogeneity among items produced under conditions employing behavioral objectives were not found. (Author/AG)

This paper presents the interim results of a set of studies undertaken to develop a much needed methodology for establishing content validity in domain-referenced achievement tests. The study results are presented in the context of the larger issue of the improvement of test design. School teachers, administrators and graduate students were…

The materials presented were developed for use in a series of conferences on testing and instruction sponsored by the National Institute of Education, with the United States Office of Education, the UCLA Center for the Study of Evaluation, and a network of research and development agencies. They are intended for use by school practitioners and…