Abstract
An estimator of shrinkage based on information contained in a single sample is presented and the results of a simulation study are reported. The effects of sample size, amount, and severity of nonrepresentative data in the population, inclusion of noninformative predictors, and least (sum of) absolute deviations and least (sum of) squared deviations regression models are examined on the estimator. A single-sample estimator of shrinkage based on drop-one cross-validation is shown to be highly accurate under a wide variety of research conditions.
* Current affiliation: NOAA/AOML/Hurricane Research Division, Miami, Florida.
Corresponding author address: Dr. Paul W. Mielke Jr., Department of Statistics, Colorado State University, Fort Collins, CO 80523-1877.
Email: mielke@lamar.colostate.edu