Abstract
Robert J. Casady and James M. Lepkowski
(1991) "Optimal Allocation For Stratified Telephone Survey
Designs", Proceedings of the Section on Survey Research
Methods, American Statistical Association, 111-116.
Two stage random digit dialing (RDD) telephone sample
designs such as that described by Waksberg are highly
effective at identifying banks of numbers that have high
concentrations of residential telephone numbers. Thus, they
are able to increase dialing efficiency in telephone surveys
by reducing the number of nonworking numbers that are dialed.
Unfortunately, two stage RDD designs have undesirable
features such as replacement of nonworking numbers late in
the interviewing period. Hybrid telephone sample designs are
proposed which provide samples of telephone commercial lists
of listed telephone numbers to identify banks of numbers that
have high concentrations. Allocation of sample size among
listed numbers, unlisted numbers in banks with listed
numbers, and numbers in banks without listed numbers are
explored. Analysis of a commercial frame of listed numbers
are used to specify design parameters in the allocation
formulation.
Last Modified Date: July 19, 2008
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