On checking of the real representativeness of social sampling
The article considers the issues relating to checking of representativity of results of sampling sociological, demographic observations. The entire assembly feature in such researches (general population, its individual types, classes) is that in most cases parameters values of these multitudes are a priori unknown which makes it difficult to apply traditional approaches to the appraisal of representativeness of result samplings based on CLT (central limit theorem). The paper formulates and evaluates on real information arrays additional conditions (checking of real informativeness of the type-forming attributes), allowing to decrease risks of human bias.