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How can we improve the quality of behavioral risk factor data?

Providing technical assistance and cognitive testing of questions for BRFSS

Challenge

The BRFSS is a state-based survey system that serves as the nation’s primary data source for designing health care programs, policies, and interventions at local and state levels.

The data are used to address the most important public health issues across the country and territories. So, the BRFSS content must be current, reliable, valid, and easy for respondents to understand and answer.

In its role of overseeing the collaborative BRFSS effort, the Centers for Disease Control and Prevention (CDC) continuously designs and conducts pilot studies to evaluate the impact that changing survey methods would have on response rates, data quality, survey estimates, and cost.

Solution

Westat supports the annual BRFSS question development cycle by conducting expert reviews and cognitive testing of new and revised question modules.

Westat conducted cognitive interviews with cancer survivors about questions that measure cancer screening and outcomes. Westat also conducted interviews with the general population about alcohol consumption, tobacco products, and family planning.

In addition, Westat conducted pilot tests with subsets of the 50 states to study the feasibility of changing survey methods and to assess the impact of alternative data collection modes and sampling approaches on data quality and population estimates.

Results

The CDC will use results from cognitive testing to inform content decisions and results from the pilot tests to make decisions about methodological changes to the survey system.

Such changes will help the BRFSS to keep pace with changes in communication and the role of technology in data collection.

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