Coverage error typology in telephone survey

Abstract

The article is dedicated to the coverage errors in telephone surveys. The errors may be divided into two types. The first type of errors refers to the exclusion of non-telephone households; the second type deals with the exclusion of mobile phone numbers. A peculiar trait of Russian telephone survey is that the first type is more common that the second type which is not true for the foreign telephone surveys. The first type error in Russian telephone survey does not exceed 1.2 %; however, it may reach 4.7% in specially selected groups.