Dear Applied Statistics Community, Please join us for the final applied statistics workshop when Jamie Robins , Department of Epidemiology and Biostatistics, Harvard School of Public Health, will Present "Estimation of Direct Effects in different contexts: Pure and natural direct effects, Pathway-specific estimation, principal stratification, mendelian randomization, testing the exclusion restriction , and surrogate markers". A paper will be posted to the applied statistics blog (http://www.iq.harvard.edu/blog/sss/) later this evening. The Applied Statistics workshop meets in room N-354, CGIS-Knafel 1737 Cambridge. The workshop begins at 12noon with a light lunch, with our presentations beginning at 1215 and usually ending around 130 pm. Please send along any questions or comments Cheers Justin Grimmer