What are replicate weights? Why are replicate weights used?
Replicate weights can be used to account for the geographically stratified CHIS sample design. In addition to the full sample weight (RAKEDW0), there are 80 additional “replicate weight” variables (RAKEDW1-RAKEDW80). Replicate weights allow researchers to generate accurate standard errors, confidence intervals, and tests of significance for population estimates. They are used in the absence of sample design information (e.g., TSVARSTR) in the data set, such as the CHIS Public Use Files.
