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BRFSS Survey Techniques
BRFSS Survey TechniquesBRFSS Survey Techniques


Sampling Methods
Because it would be impossible to phone every household in the state each year, BRFSS relies on a sample of the population. The sampling method used assures comparability of data across states and over time.

Most states use the Disproportionate Stratified Sample (DSS) Method.

  • Phone numbers are randomly selected throughout the state.
  • Business and nonworking numbers are omitted.
  • Individuals age 18 years and older are randomly selected from each household called.
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