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CHIS Data Quality

CHIS Fall 2018 Address-Based Sampling Mail Push-to-Web Statewide Pilot Experiment


The decline in response rates of random-digit-dialing (RDD) sampling and computer-assisted telephone interviewing (CATI) data collection and cultural shifts in telephone use has driven the UCLA Center for Health Policy Research to consider a methodological redesign of the California Health Interview Survey (CHIS) in order to implement more cost-effective methods that could supplement or replace RDD/CATI in future CHIS cycles.

A statewide pilot conducted in the fall of 2018 explored a revised design for the CHIS which used an address-based sampling (ABS) frame with a mail push-to-web invitation with a CATI nonresponse follow-up. This report details the revised design and the results of the pilot in comparison to current production data in terms of response rates, cost, and impacts on key health indicators. In addition, this report discusses a number of methodological experiments conducted as part of the pilot to improve collection of data on children and adolescents, and from Spanish-speaking households.

See further documentation on this