Recent research on statewide voucher programs in Louisiana and Indiana has found that public school students that received vouchers to attend private schools subsequently scored lower on reading and math tests compared to similar students that remained in public schools. The magnitudes of the negative impacts were large. A case to use taxpayer…

The School Composition and the Black-White Achievement Gap study was undertaken by the National Center for Education Statistics to present both descriptive and associative information on the relationships among the percentage of students in a school who were Black (referred to as "Black student density" or "density"), the…

Some form of a short interrupted time series (ITS) is often used to evaluate state and national programs. An ITS design with a single treatment group assumes that the pretest functional form can be validly estimated and extrapolated into the postintervention period where it provides a valid counterfactual. This assumption is problematic. Ambiguous…

Interrupted time-series (ITS) are often used to assess the causal effect of a planned or even unplanned shock introduced into an on-going process. The pre-intervention slope is supposed to index the causal counterfactual, and deviations from it in mean, slope or variance are used to indicate an effect. However, a secure causal inference is only…

This report uses NAEP background data to track time and learning since the mid-1990s in three areas: student absenteeism; classroom instructional time in mathematics, reading, music and the visual arts; and homework time expected by teachers. Key report findings are: (1) Students with higher rates of "monthly absenteeism" score…

This "Technical Guide" describes the methodology and concepts used to measure and grade the performance of the 50 states in the higher education arena. Part I presents the methodology for grading states and provides information on data collection and reporting. Part II explains the indicators that comprise each of the graded categories.…

The National Assessment of Educational Progress (NAEP) is a survey of the educational achievement of American students and changes in their achievement across time. The NAEP has collected information for over 20 years to assist educators and policy makers. This guide intends to: document current NAEP methods for both state and national…

The National Assessment of Educational Progress (NAEP), often called the "Nation's Report Card," is the only nationally representative, continuing assessment of what U.S. students know and can do in various subject areas. NAEP provides a comprehensive measure of students' learning at critical junctures in their school experience. The…

In the 1970s and 1980s, the National Assessment of Educational Progress (NAEP) built a longitudinal record as the Nation's Report Card based on periodic brief assessments of a modest but representative sample of the nation's students. In 1990, data collection was expanded from a sample of 10,000 students in each grade and subject area to 100,000…

As mandated by Congress, the National Assessment of Educational Progress (NAEP) surveys the educational accomplishments of U.S. students and monitors changes in those accomplishments. NAEP tracks the educational achievement of 4th, 8th, and 12th graders over time in selected content areas, and has been tracking achievement for 30 years. The goals…

This report presents results of the National Assessment of Educational Progress (NAEP) 1994 trend assessments in science, mathematics, reading, and writing. To provide a numeric summary to students' performance on the assessments, the NAEP used a 0 to 500 scale for each subject area. Comparisons of average scale scores are provided across the…

Changes that have been made in reporting and disseminating information from the National Assessment of Educational Progress are discussed, focusing on those changes brought about by the first Trial State Assessment (TSA). The TSA collected data on the mathematics performance of students in grades 4, 8, and 12 in public and private schools in 40…