The gold standard in making causal inference on program effects is a randomized trial. Most randomization designs in education randomize classrooms or schools rather than individual students. Such "clustered randomization" designs have one principal drawback: They tend to have limited statistical power or precision. This study aims to…

The teacher's task of assigning letter grades to students and the public's interpretation of them can be perplexing. Does the student's grade represent the level of achievement, the gain in achievement, or some combination of the two? Is the student's effort included in the grade, or are high achievers given good marks regardless of effort? Are…

Advocates of vouchers believe that public schools facing the threat of losing students and funding to private schools will take the measures necessary to raise student performance. Opponents worry that vouchers will actually leave public schools worse off by draining them of funds and encouraging the best students and the most involved parents to…

Profiles charter schools in the Broward County (Florida) School District. Identifies when schools were chartered, the length of the charter, the nature and extent of student participation, average daily attendance, student withdrawals or transfers, and the results of norm-referenced tests, state achievement tests, and college entrance exams. Also…