Comparing Vaccination Estimates from Four Survey Designs: Vaccination Estimates from RDD, RDD+Cell, ABS, and Area Probability Sampling

• Activity Number: 228
• Type: Topic Contributed
• Date/Time: Monday, August 2, 2010 : 2:00 PM to 3:50 PM
• Sponsor: Section on Survey Research Methods
• Author(s): Martin Barron*+ and Karen Wooten and Beth Taylor
• Companies: NORC and National Center for Immunization and Respiratory Diseases and National Center for Health Statistics
• Keywords: National Immunization Survey ; Random Digit Dialing ; Cell Telephone Surveys ; Address Based Sampling ; Area Probability Sampling

Abstract

To cope with the declining population coverage of traditional RDD surveys, the National Immunization Survey (NIS) has conducted several experiments to test alternative sampling and data collection strategies and to gauge potential bias in current landline-based survey estimates. These include a cell-telephone pilot study, an address-based sampling pilot study, and an experiment on the National Health Interview Survey where immunization information was collected from respondent's vaccination providers. National vaccination estimates from the traditional NIS landline RDD sample, the combined RDD+cell sample, the address-based sample, and the area probability sample are presented. This paper will discuss these experiments in terms of their methodology, response rates, and survey estimates.