Disproportionate Stratified Sampling

Disproportionate stratified sampling is a sampling method used when the population of interest is made up of subgroups that are naturally unequal in size or composition. With this method, a sample of each subgroup (stratum) is randomly drawn and the size of each sample is tailored to the reflecting the subgroup's proportion in the overall population. This technique allows researchers to incorporate the socioeconomic, racial, or other demographic characteristics of the larger population into the sampling process. The result is that estimates based on this sample are more accurate and reliable because they are more representative of the larger population.