Changing placement policy may help to improve developmental education student outcomes in community colleges, but there is little understanding of the impacts of these reforms. We take advantage of heterogeneous placement policy in a large urban community college district in California to compare the effects of math remediation under different…

Every year, California's community colleges identify hundreds of thousands of students as not ready for transfer-level courses in math and English. Since these courses are required to transfer to a four-year college, students deemed underprepared are placed in developmental (also known as remedial or basic-skills) courses to prepare for college…