I am a postdoctoral fellow at the Center on Aging and Health at Johns Hopkins University. My research explores the social causes and consequences of health over the life course. Specific interests include the impact of poor childhood physical and mental health, race-gender disparities in health at older ages, and implications of sample loss due to non-random attrition and mortality. I have four ongoing research projects. The first examines the cumulative impact of early mental and physical health on educational attainment. The second looks at heterogeneity in the effect of an ADHD diagnosis for subsequent scholastic achievement. The third examines the association of employment history with later life health trajectories. The fourth explores the consequences of non-random missing data for estimating latent class growth models.