an approach used in cluster sampling where the clusters have widely differing numbers of units in them. Clusters are selected with a probability proportional to the number of units in them. The units within each selected cluster are then sampled with a probability inversely proportional to the number of units, so that the probability of selecting each unit from the selected clusters is equal.
RESEARCH PROBABILITY PROPORTIONATE TO SIZE
Meaning of RESEARCH PROBABILITY PROPORTIONATE TO SIZE in English
Raynet Business and Marketing English glossary. Английский глоссарий компании Raynet Business and Marketing . 2012