The Social Science Variables Database (SSVD) enables ICPSR users to examine and compare variables and questions across studies or series. The SSVD currently includes over 4 million variables, representing about 76% of ICPSR's holdings that have quantitative data described in statistical syntax.
You can compare variables using the checkboxes and the "Compare" button on the search results page.
Enter words or strings that are likely to appear in a variable name, label, question, and value labels:
Presidential election will return variables dealing with all presidential elections
Presidential election Obama will return only variables dealing with the 2008 presidential election
Use quotes to search for specific phrases:
The minus sign may be used to remove certain types of results:
"Presidential debate" -"Bill Clinton" will eliminate the debates from 1992 and 1996 in which Clinton participated
A Boolean "and" is implied in the search.
The search automatically does stemming (more info); there's no need to type in an asterisk. It's also case-insensitive.
A fielded search is also available.