Operational Results from an Address-Based Sampling Pilot for the National Immunization Survey

• Activity Number: 421
• Type: Contributed
• Date/Time: Wednesday, August 5, 2009 : 8:30 AM to 10:20 AM
• Sponsor: Section on Survey Research Methods
• Author(s): Benjamin Skalland*+ and Martin Barron and Karen Wooten
• Companies: NORC at the University of Chicago and NORC at the University of Chicago and CDC
• Keywords: NIS ; ABS ; Address-based sampling ; National Immunization Survey

Abstract

Due to the declining coverage of random-digit-dialing (RDD) sampling frames resulting from the increasing proportion of households without a landline telephone, the National Immunization Survey (NIS) conducted a pilot in spring 2009 using address-based sampling (ABS) with multimode (telephone and mail) interviewing. Traditionally, data are collected in the NIS in two phases. In the first phase, households with 19-35 month-old children are identified using a list-assisted RDD survey, and data on the children's socio-demographic characteristics are collected. At the end of the RDD interview, consent is requested to contact the children's vaccination providers, who are then mailed an immunization history survey. This paper describes the ABS methodology employed in the pilot and presents operational results, including preliminary response and yield rates.