This paper compares the precision gains from adjusting impact estimates for student-level pretest scores (which can be costly to collect) with the gains associated with using publically available school-level proficiency data (available at low cost), using data from five large-scale randomized...

As part of No Child Left Behind, parents of low-income students in low-performing schools are offered Supplemental Educational Services (SES) for their children. These academic supports, such as extra tutoring or group sessions, take place outside the regular school day. A report and executive...

Using data from four previously published education studies, this working paper finds that a study using a regression discontinuity design needs between 9 and 17 times as many schools or students as a randomized controlled trial to produce an impact with the same level of statistical precision....

Using data from four previously published education studies, this working paper finds that a study using a regression discontinuity design needs between 9 and 17 times as many schools or students as a randomized controlled trial to produce an impact with the same level of statistical precision....

As part of No Child Left Behind, parents of low-income students in low-performing schools are offered Supplemental Educational Services (SES) for their children. These academic supports, such as extra tutoring or group sessions, take place outside the regular school day. A report and executive...

Building Strong Families (BSF) is a large-scale demonstration and rigorous evaluation of marriage and relationship education programs that has now enrolled more than 5,000 low-income, romantically involved, unmarried couples. At enrollment, all couples were expecting or recently had a child...

Building Strong Families (BSF) is a large-scale demonstration and rigorous evaluation of marriage and relationship education programs that has now enrolled more than 5,000 low-income, romantically involved, unmarried couples. At enrollment, all couples were expecting or recently had a child...