In addition to the census of state health directors, the sampling design utilized systematic samples with equal probability of selection (within organization type) and implicit stratification for the local and tribal respondents. Implicit stratification involves sorting the frame on certain variables so that the sample drawn is representative on that variable. We chose to sort on multiple variables, allowing the study’s samples to be representative on more than one dimension. This procedure is described for both local and tribal health organizations below.
"HUS-HP Users Assessment 9-29-05 (3).pdf" (pdf, 731.33Kb)