The release of the cumulated ISSP ´Social Inequality´ modules for the years 1987, 1992, 1999 and 2009 consists of two separate datasets: ZA5890 and ZA5891. This documentation deals with the supplementary dataset ZA5891. This dataset contains in addition to some only apparently cumulated substantial variables all those national specific background variables that could not be cumulated for various reasons, or in case of the miscellaneous variables differ from the cumulation standard. However, the variables of this dataset can be matched easily to the cumulated file if necessary. A comprehensive overview on the contents, the structure and basic coding rules of both data files can be found in the following guide: Guide for the ISSP ´Social Inequality´ cumulation of the years 1987,1992, 1999 and 2009 Social Inequality 1. Substantial variables on ideas of real and appropriate earnings of different professions for all countries and modules if available. 2. Country specific background variables on respondent’s education, respondent’s income, family income, party affiliation, party vote last general election, size of community, ethnic identity and on national occupations for respondent, spouse/ partner, father and mother if deviating from ILO ISCO-4 digits or cumulation standard. 3. Miscellaneous variables including module specific background variables and country specific variables for cumulated substantial and background variables if deviating from cumulation standard: type of community: urban-rural area; industrial sector (1987, 1992); number of supervised people (1992, 1999); respondent´s working type: private versus public sector (1987); working type of spouse/partner: working for private or public sector or self-employed (2009); administrative mode of data-collection and case substitution flag (2009); self-placement of social class (Philippines 1992); industrial sector (1992, only in Austria, Germany, Russia and United States); current employment status of spouse/partner (Philippines 1992); household composition (children and adults) (United States 1992); type of living (Philippines 1992); party affiliation left-right (derived from party vote intention) (Hungary 1992); region (Slovak Republic 1999 and 2009, Czech Republic and Israel 2009).

Mode of interview differs for the individual countries: partly face-to-face interviews (partly CAPI) with standardized questionnaire, partly paper and pencil and postal survey, exceptionally computer assisted web interview (CAWI)

In most cases: persons aged 18 and older

Sampling procedures differ for the individual countries: partly simple, partly multi-stage stratified random samples