Sociodemographic characteristics include, for example, age, sex, education, migration background and ethnicity, religious affiliation, marital status, household, employment, and income. Different index variables are formed on the basis of sociodemographic characteristics. They include, for example, socio-economic status, which combines information on education and income. Socio-demographic details are often used to describe realised samples and to determine sampling error.
The contributions devoted to sociodemographic characteristics provide an overview of available survey instruments or address the measurement of individual sociodemographic characteristics.