An official website of the United States government
United States Department of Labor
United States Department of Labor
The .gov means it's official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information,
make sure you're on a federal government site.
The site is secure.
The
https:// ensures that you are connecting to the official website and that any
information you provide is encrypted and transmitted securely.
Office of Survey Methods Research
SHARE ON:
More Information
Published Year: 1992
Survey/Program(s): General Methodology
Catalog: Statistical Survey Paper
Download PDF
The Allocation of Sample Size In Stratified Telephone Sample Designs
Abstract
Stratified telephone sample designs have been proposed which provide samples of phone numbers that have high concentrations of working residential telephone numbers but require little replacement sampling. These designs use commercial lists of telephone numbers to create sampling strata based on counts of listed residential numbers. Disproportionate allocation of sample size to strata composed of banks with listed numbers and to strata of banks without listed numbers has been considered as a means of increasing design efficiency. This paper uses recent empirical results to improve the specification of optimal stratified sample designs in different survey contexts. In particular, an informed discussion of sampling from banks without listed numbers (so-called "low-density" strata) is given.