How Much of a “Running Start” do Dual Enrollment Programs Provide Students?

We study a popular dual enrollment program in Washington State using a new administrative database linking high school and postsecondary enrollments. Conditional on prior high school performance and basic demographic and economic covariates, dual enrollment students are more likely to attend any college, but they are no more likely to attend college full-time and are less likely to attend a four-year college. Supplementary analyses suggest selection on pretreatment college enrollment plans explains some of the initial diversionary effect of dual enrollment. Finally, we consider the role of common data limitations in interpreting results of dual enrollment studies.