Regression imputation is commonly used to compensate for item nonresponse when auxiliary data are available. It is common practice to compute survey estimators by treating imputed values as observed ...

Joint mean-covariance regression modeling with unconstrained parametrization for continuous longitudinal data has provided statisticians and practitioners with a powerful analytical device. How to ...

Whether you've managed your investments well into retirement or just got a 401(k) a couple of years ago, it's always wise to get back to the basics and refresh yourself on some of the most critical ...