In this article the authors discuss and develop a statistical model that describes the relationship between an individual's short-term recall of his or her physical activity and usual activity over a long period of time. Modeling measurement error in recall data can be used to provide more...

Prediction for the mixed model requires estimates of covariance matrices. There is often a direct estimate of the “within area” covariance matrix, and for survey samples this is an estimate of the sampling covariance matrix. The estimated covariance matrix may have large sampling variance,...

In this article the authors discuss and develop a statistical model that describes the relationship between an individual's short-term recall of his or her physical activity and usual activity over a long period of time. Modeling measurement error in recall data can be used to provide more...

Although welfare reform began in 1996 at the national level, Iowa was one of the earliest states to obtain a waiver to initiate the Iowa Family Investment Program (FIP) in 1993. To gain a better understanding of welfare recidivism, we use Iowa administrative quarterly data between October1993...

Although welfare reform began in 1996 at the national level, Iowa was one of the earliest states to obtain a waiver to initiate the Iowa Family Investment Program (FIP) in 1993. To gain a better understanding of welfare recidivism, we use Iowa administrative quarterly data between October1993...

Occasionally, a selected probability sample may appear undesirable with respect to the available auxiliary information. In such a situation, the practitioner might consider rejecting the sample and selecting a new set of sample elements. We consider a procedure in which the probability sample is...

C-SIDE implements the method for estimating usual intake distributions either for dietary components consumed daily or for components consumed less frequently. This manual is divided into four parts: an introduction listing equipment and data requirements; a description of the use of the...