WebThe BRFSS vulnerabilities to sampling and nonresponse bias are known and the BRFSS weighting methodology was designed to reduce the vulnerabilities. A key component of the BRFSS weighting methodology is a weight adjustment technique, iterative proportional fitting (raking). Raking adjusts the preliminary survey weights (pre-raking … WebBRFSS uses weight trimming to increase the value of extremely low weights and decrease the value of extremely high weights. The objective of weight trimming is to reduce errors in the outcome estimates caused by unusually high or low weights in some …
CDC - BRFSS - BRFSS Frequently Asked Questions (FAQs)
WebThe 2024 BRFSS data continues to reflect the changes initially made in 2011 in weighting methodology (raking) and the addition of cell phone only respondents. The aggregate BRFSS combined landline and cell phone dataset is built from the landline and cell phone data submitted for 2024 and includes data for 50 states, DC, Guam, and Puerto Rico. WebIn 2011 the BRFSS weighting methodology changed from Post-Stratification to Raking. Post-Stratification was used for many years, but Raking will now be the only method … brookings oregon whaleshead resort
BRFSS Technical Notes KDHE, KS
WebThe Behavioral Risk Factor Surveillance System (BRFSS) is an ongoing, state-based, random-digit– ... Since 2011, the BRFSS has used the weighting methodology called iterative proportional fitting (IPF) or raking to weight data. Raking allows incorporation of cellular telephone survey data, and it permits the WebWeighting Methodology The BRFSS raking method used to generate the 2024 final weight is described in the documentation available with the annual aggregate data release. For the details of the description of the raking methodology, refer to the WebNov 15, 2016 · In total, six national weighting strategies are tested: Method 1 uses the same margins as the original BRFSS, but weighted at the national level; Method 2 uses … care english school