(NCES) is the primary federal entity for collecting, analyzing, and reporting data related to education in the United States and other nations. It fulfills a congressional mandate to collect, collate, analyze, and report full and complete statistics on the condition of education in the United States; conduct and publish reports and specialized analyses of the meaning and significance of such statistics; assist state and local education agencies in improving their statistical systems; and review and report on education activities in foreign countries. NCES activities are designed to address high priority education data needs; provide consistent, reliable, complete, and accurate indicators of education status and trends; and report timely, useful, and high quality data to the U.S. Department of Education, the Congress, the states, other education policymakers, practitioners, data users, and the general public. We strive to make our products available in a variety of formats and in language that is appropriate to a variety of audiences. You, as our customer, are the best judge of our success in communicating information effectively. If you have any comments or suggestions about this or any other NCES product or report, we would like to hear from you. Please direct your comments to:

Formal programs that provide research experiences for teachers (RET) have been in existence for more than 20 years. Currently there are more than 70 formalized Scientific Work Experiences Programs for Teachers (SWEPTs) nationwide. The underlying assumption of most RETs is that these intensive summer work immersion experiences, coupled with appropriate follow-up activities during the school year, expand teachers' professional skills and networks, and thereby improve the performance of their students. Many SWEPTs have collected anecdotal evidence indicating their program's positive impact on teachers. Missing from all SWEPT evaluations is quantitative evidence that teacher participation in these programs affects student interest and performance in the subject taught by the SWEPT teacher. As professional evaluators attest, it is difficult to differentiate the roles of teachers and teaching practices in changing student academic interest and performance from other factors (e.g., curriculum, school administration, non-random assignment of students, etc.).This study controls for many of these factors by comparing interest and achievement of students in classes of SWEPT teachers with students in classes of comparison teachers in the same school and teaching the same subject. The study's longitudinal design is commensurate with the philosophy and practices of the participating SWEPTs.

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