My statistical research interests are two-fold. The first area is complex survey sampling. I am interested in the design and analysis of complex survey data. Topics in this area include bayesian analysis, non-sampling errors, and issues of proper analysis considering weighting issues. A number of statistical packages such as STATA and SUDAAN are being explored. My second area of interest is in topics of regression analysis. These topics include linear models with uncorrelated errors and heteroscedasticity, inverse prediction, bootstrapping, measurement error, nonlinear regression with and without heteroscedasticity and correlated data in linear regression.