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Title

CHIS 2019-2020 Redesign: Rationale, Empirical Evaluation, and Trends

Publication Topics

2015 California Health Interview Survey (CHIS 2015); 2016 California Health Interview Survey (CHIS 2016); 2017 California Health Interview Survey (CHIS 2017); 2018 California Health Interview Survey (CHIS 2018); 2019 California Health Interview Survey (CHIS 2019); Research Methods; Survey Research

Publication Type

Research Report

Publication Date

2020-10-29T07:00:00Z

Author 1

<a onclick="OpenPopUpPage('http:\u002f\u002faskchisne.ucla.edu\u002f_layouts\u002flistform.aspx?PageType=4\u0026ListId={7AAD61FA-4BCB-48C0-B0B7-87AFDC3673EF}\u0026ID=1437\u0026RootFolder=*', RefreshPage); return false;" href="http://askchisne.ucla.edu/_layouts/listform.aspx?PageType=4&amp;ListId={7AAD61FA-4BCB-48C0-B0B7-87AFDC3673EF}&amp;ID=1437&amp;RootFolder=*">Brian M. Wells, Ph.D.</a>

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Abstract

Summary: The decline of telephone surveys due to low response rates and cultural shifts in telephone use motivated the UCLA Center for Health Policy Research to consider a methodological redesign for the California Health Interview Survey (CHIS) in order to implement more cost-effective methods. The redesign process included working with consultants and conducting two field experiments. The resulting design for CHIS 2019 production is a mixed-mode survey, using an address-based sampling (ABS) frame with a mail push-to-web survey followed by a telephone nonresponse follow-up. The primary purpose of this report is to evaluate how the methodological changes impact trending data across cycles. Statewide pilot data from 2018 is used as a reference point related to the redesign.

There are three primary reasons for shifts in trends for CHIS 2019:

1) Sample compositional changes due to sampling frame and mode

2) Measurement changes related to mode

3) Actual changes in the population over time

Findings: ​Based on the evaluations conducted, CHIS feels assured that data users will be able to trend most substantive variables, but we encourage data users to interpret trends with caution. While this report cannot examine every trend for every variable, it should provide sufficient background and clear examples to help researchers interpret trends and make decisions about whether trending CHIS data across this methodological redesign is appropriate.​

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Research Report: CHIS 2019-2020 Redesign: Rationale, Empirical Evaluation, and Trends

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Press Release

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California Health Interview Survey

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Created at 1/27/2021 1:43 PM by i:0#.f|uclachissqlmembershipprovider|venetia
Last modified at 1/27/2021 2:14 PM by i:0#.f|uclachissqlmembershipprovider|venetia