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...

Paying teachers for their performance rather than solely on experience and education is not a new idea, but it is gaining traction in today's climate of educational accountability. Yet the research has not kept up with policy, in part because most programs do not last long enough to be studied...

In 1998, California voters passed Proposition 10, the citizen initiative that levied a tax on tobacco products and earmarked the revenues to advance child and family development, health, education, and safety from pregnancy until children enter kindergarten. Funds flow from the state treasury to...

A Mathematica team led by Emily Dwoyer, Kathy Sonnenfeld, and Susan Sprachman provided the data collection services for this study of the Experience Corps (EC) initiative, a program that brings older adults ages 55 and up into public elementary schools to tutor and mentor children who are at...

Ideally, nonexperimental methods that aim to replicate the results of rigorous randomized experiments focus on the intent to treat (ITT) experimental impact estimate, the most causally rigorous measure. This working paper develops a new replication approach that facilitates testing...