The first large-scale, random assignment study of the effects of secondary school math teachers from Teach For America and the Teaching Fellows programs found they were as effective as, and in some cases more effective than, teachers receiving traditional certification. The study was sponsored...

The first large-scale, random assignment study of the effects of secondary school math teachers from Teach For America and the Teaching Fellows programs found they were as effective as, and in some cases more effective than, teachers receiving traditional certification. The study was sponsored...

The final report to Congress presents complete findings from our seven-year national evaluation of Early Head Start. The findings show that the program promotes learning and the parenting that supports it within the first three years of life. Participating children perform significantly better...

This paper presents findings from an experimental evaluation of Job Corps, the nation’s largest training program for disadvantaged youths. The study used survey data collected over four years, as well as tax data collected over nine years, for a nationwide sample of 15,400 treatments and...

For randomized control trials (RCTs) of education interventions, it is often of interest to estimate associations between student and mediating teacher practice outcomes, to examine the extent to which a study’s conceptual model is supported by data, and to identify mediators most...

To improve precision of estimated treatment effects, education randomized control trials (RCTs) often use pretest–post-test experimental designs. For logistical reasons, however, pretest data often are collected after random assignment, so including them in the analysis could bias...

Early Head Start, a federal program begun in 1995 for low-income pregnant women and families with infants and toddlers, was evaluated through a randomized trial of 3,001 families in 17 programs. Interviews with primary caregivers, child assessments, and observations of parent– child...

Randomized control trials (RCTs) in the education field typically examine the intention-to-treat parameter, which is estimated by comparing the mean outcomes of treatment group members to those of the control group. This report examines the identification and estimation of the complier average...

Performance management systems may improve service delivery and participant outcomes, but they do not necessarily provide information on a program's causal effects. This article develops a statistical model that describes the conditions under which regression adjustment improves the...