%0 Journal Article %T Pell Grant Versus Income Data in Postsecondary Research %A Karly S. Ford %A Kelly Ochs Rosinger %J Educational Researcher %@ 1935-102X %D 2019 %R 10.3102/0013189X19852102 %X Given growing disparities in college enrollment by household income, policymakers and researchers often are interested in understanding whether policies expand access for low-income students. In this brief, we highlight the limitations of a commonly available measure of low-income status¡ªwhether students receive a federal Pell grant¡ªand compare it to new data on enrollment by income quintile to evaluate a recent policy effort within elite colleges aimed at expanding access. We demonstrate that Pell is a rough measure of low-income status and that without more detailed data on colleges¡¯ economic diversity, policy evaluations focusing on existing Pell data will suffer from measurement error and potentially miss enrollment effects for moderate- and high-income students %K admissions %K college access %K econometric analysis %K education policy %K Pell grant %K policy analysis %K postsecondary education %K quasi-experimental analysis %K social class %U https://journals.sagepub.com/doi/full/10.3102/0013189X19852102