Billions of dollars are spent each year on early diagnosis and intervention programs for autism. However, there is little reliable evidence about the effectiveness of these programs. Few studies that evaluate early interventions for autism use random assignment or quasi-experimental designs, and...

This study makes use of detailed student-level data from eight cohorts of first-year students at Northwestern University to investigate the relative effects of tenure track/tenured versus non-tenure line faculty on student learning. We focus on classes taken during a student's first term at...

The recent passage of the No Child Left Behind Act of 2001 solidified a national trend toward increased student testing for the purpose of evaluating public schools. This new environment for schools provides strong incentives for schools to alter the ways in which they deliver educational...

This paper is the first to systematically document the relationship between individual teacher performance incentives and student achievement using United States data. We combine data from the National Education Longitudinal Survey on schools, students, and their families with our own survey...

We study the effects of private school competition on public school students' test scores in the wake of Florida's Corporate Tax Credit Scholarship program, now known as the Florida Tax Credit Scholarship Program, which offered scholarships to eligible low-income students to attend private...

We use the introduction of a means-tested voucher program in Florida to examine whether increased competitive pressure on public schools affects students' test scores. We find greater score improvements in the wake of the program introduction for students attending schools that faced more...

This paper presents the first experimental evidence on the effects of live versus internet media of instruction. Students in a large introductory microeconomics course at a major research university were randomly assigned to live lectures versus watching these same lectures in an internet...

While numerous studies have found that school accountability boosts test scores, it is uncertain whether estimated test score gains reflect genuine improvements or merely ?gaming? behaviors. This paper brings to bear new evidence from a unique five-year, three-round survey conducted of a census...