This catalog compiles information from 54 studies of 39 family-strengthening programs that serve low-income couples. It documents the research on the programs’ effectiveness or impacts and the degree to which the studies demonstrate that a specific program (and not some other factor) led to...

The National Institutes of Health (NIH) spends millions of dollars each year to provide scholarships to an elite group of highly talented undergraduate science students from disadvantaged backgrounds to encourage them to pursue careers in biomedical research. Mathematica’s evaluation found...

Created by Congress to help disability beneficiaries find employment, the Ticket to Work (TTW) program was revised in 2008 to make it more attractive to employment service providers. This brief discusses how the TTW participant population has changed under the revised regulations, and examines...

This project describes 4-year-old children attending Chicago’s early childhood education programs in fall 2006, characteristics of teachers and educational environments in the classrooms, and developmental progress children made during the 2006-2007 preschool year. The study includes full-day...

This report is the latest in a National Center for Education Statistics series on young children’s nonparental care arrangements and educational program participation. It presents the most recent data available for children under the age of six, taken from the 2001 administration of the Early...

The Santa Clara County Children’s Health Initiative (CHI), launched in January 2001, seeks to extend health coverage to all uninsured children in that California county. This issue brief measures the effect of the initiative on enrollment in Medi-Cal and Healthy Families, the two major state...

Medical malpractice in obstetrics continues to attract scrutiny. This paper examines the impact of physicians’ malpractice claims on Caesarian section rates and physician delivery volume in Florida between 1992 and 2000. The author found that malpractice claims led to a small reduction in...

The National Institutes of Health (NIH) spends millions of dollars each year to provide scholarships to an elite group of highly talented undergraduate science students from disadvantaged backgrounds to encourage them to pursue careers in biomedical research. Mathematica’s evaluation found...

This article addresses likely error rates for measuring teacher and school performance in the upper elementary grades using value-added models applied to student test score gain data. Using formulas based on ordinary least squares and empirical Bayes estimators, error rates for comparing a...