What is a Sample Weight?
A sample weight is assigned to each sample person. It is a measure of the number of people in the population represented by that sample person in NHANES, reflecting the unequal probability of selection, nonresponse adjustment, and adjustment to independent population controls. When unequal selection probability is applied, as in the NHANES sample, the sample weights are used to produce an unbiased national estimate. More information about sample weights and how they are created can be found in the Weighting module.
Related Questions
- On high dollar-valued or small seed lots, the submitted sample weight may create a financial burden. Is it okay to send less seed?
- Does the system automatically update the volume or weight of a parent sample when performing derivative operations?
- Why weight of each sample must be ~ 50 g at sandstone density?
