This journal article discusses a study evaluating the effectiveness of math placement policies for entering community college students on these students' academic success in math. Researchers estimate the impact of placement decisions by using a discrete-time survival model within a regression discontinuity framework. The primary conclusion that emerges is that initial placement in a lower level course increases the time until a student at the margin completes the higher level course they were not assigned to by about a year on average, but in most cases, after this time period, the penalty was small and not statistically significant.