Survey questions in the “GSS replicating core” are regularly administered as part of each GSS. Core items include background information about respondents (for example: age [AGE], sex [SEX], education [EDUC, DEGREE], region of residence [REGION]) and measures of attitudes (such as views about gender roles [e.g. FEHOME], confidence in institutions [e.g. CONFINAN] or gun control [GUNLAW]) or behaviors (such attendance at religious services [ATTEND] or voting in the most recent US Presidential election [VOTE68 through VOTE12]). Each GSS since 1985 also includes an International Social Survey Program (ISSP) module. Many items in ISSP modules are repeated from earlier modules on the subject covered. Items are very occasionally added to or removed from the GSS core. An especially notable number of items was removed from the core after 1994. To see how regularly any particular GSS item is measured, consult codebook Appendix U: Variable Use by Year/Ballot. Also see the memo on the Replicating Core.
