Andrew C. Leon, Ph.D. is the Director of the Methods Core for the Weill Cornell Advanced Center for Interventions and Services Research in Late Life Depression. His NIH-funded grant, "Dynamic Techniques for Treatment Effectiveness Analyses" (R01 MH0640447), was initially awarded in 2001. He also collaborates in clinical trials and epidemiologic studies.

Current projects include:
1) A mixed-effect propensity adjustment for evaluating treatment effectiveness in longitudinal, observational studies

2) Reducing attrition bias in randomized controlled clinical trials

3) Multiplicity Adjustment Strategies for Correlated Binary Endpoints.