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Table 7 Weight variability by National Weighting Method

From: National weighting of data from the Behavioral Risk Factor Surveillance System (BRFSS)

National weighting method CVa Design effect Expected margin of error
Aggregated State Weights 1.86 4.45 0.30%
Method 1: 8 Margins 1.71 3.93 0.28%
Method 2: 9 Margins 1.80 4.26 0.29%
Method 3: 12 Margins 1.79 4.22 0.29%
Method 4: 8 Collapsed Margins 1.71 3.92 0.28%
Method 5: 9 Collapsed Margins 1.80 4.24 0.29%
Method 6: 12 Collapsed Margins 1.79 4.21 0.29%
  1. aCoefficient of variation