This article utilizes the 1999 TIMSS-R data from U.S. states and districts to explore the consequences of variation in opportunities to learn specific mathematics content. Analyses explore the relationship between classroom mathematics content coverage and student achievement as measured by the TIMSS-R international mathematics scaled score.…

The Women in Science Scale (WiSS) was first developed in 1984, and is still being used in contemporary studies, yet its psychometric properties have not been evaluated with current statistical methods. In this study, the WiSS was administered in its original 27-item form to 1,439 middle and high school students. Confirmatory factor analysis based…

In spring 2005, the Educational Policy Institute was contracted by an anonymous, non-profit, Missouri-based organization to conduct analysis of data from a series of focus groups of 7th, 9th, and 11th grade students. The purpose of the focus groups, conducted by the Change and Innovation Agency in Jefferson City, was to examine the postsecondary…

The National Research Council (NRC) report on the disproportionate representation of minority students in special and gifted education represents an opportunity to draw national attention to the challenges faced by educators as they attempt to provide high-quality educational opportunities for students from culturally and linguistically diverse…