主 题: Doubly robust estimation for the analysis of longitudinal studies with missing data
报告人: Prof.Xiaohua Zhou (University of Washington)
时 间: 2009-12-22 上午9:00 - 10:00
地 点: 理科一号楼 1490 
  
 
  Longitudinal studies often feature incomplete response and covariate
 
  data. Likelihood based method such as EM algorithm gives consistent
 
  estimators when data are missing at random provided that the response model and the missing covariate model are correctly specified.  In this talk I introduce a doubly robust
 
  estimation method for longitudinal data with missing response and
 
  missing covariate when data are missing at random. This method is
 
  appealing in that it can provide consistent estimates if either the
 
  missing data model or the missing covariate model is correctly
 
  specified. Simulation studies demonstrate that this method performs
 
  well in a variety of situations.  This is a joint work with Baojing Chen at 
      
      
        University 
       of 
      
        Washington 
       
     .