This is the program for the 2010 Joint Statistical Meetings in Vancouver, British Columbia.

Abstract Details

Activity Number: 358
Type: Contributed
Date/Time: Tuesday, August 3, 2010 : 10:30 AM to 12:20 PM
Sponsor: Section on Survey Research Methods
Abstract - #306957
Title: Selection of Replacement Samples for Nonresponding Units in Surveys That Use PPS Selection
Author(s): Kadaba P. Srinath*+
Companies: Abt Associates, Inc.
Address: 4550 Montgomery Avenue, Bethesda, MD, 20814,
Keywords: PPS Selection ; Nonresponse ; Sampling Weight
Abstract:

In some surveys there is a requirement to have a certain minimum number of completes to meet the specified margin of error of the estimates. Therefore, it is necessary to replace the nonresponding units in the original sample. If the original sample is selected with probability proportional to size (PPS), the selection of replacement samples is not straightforward. If the replacement sample is also selected with PPS, then it is difficult to determine the overall probabilities of inclusion for the selected units. Also,the original requirement of keeping the probabilities proportional to size may no longer be possible. Determination of appropriate sampling weights is also problematic. We look at two methods of selection of the replacement sample and examine the overall probabilities of selection and adjustment for nonresponse.


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