Recent policies intended to improve teacher quality have focused on the preparation that teachers receive before entering the classroom. A short-lived federal rule would have required every state to assess and rank teacher-preparation programs by their graduates' impact on student learning. Though the federal rule was repealed, last year some 21…

Five sister reports published by the Friedman Foundation over the past two years have ignored the relevant research literature in asserting that private-school voucher programs can reduce the social costs of dropping out while increasing graduation rates. The reports are state-specific, targeting five different states. But each report follows a…