The SAMHDA variable search allows users to search the question text, variable labels, and value labels in all public-use and restricted-use studies in SAMHDA. Search results may be viewed individually or in the context of the study and/or series to which they belong.
- Searching is not case sensitive. "Dog" and "dog" return the same results.
- Use quotation marks to search for a specific phrase (e.g., "life satisfaction").
- A Boolean "and" is implied in the search; if you enter multiple words, you will get results that have all the words.
- The search automatically performs "stemming," meaning that partial-word matches appear in search results; an asterisk (*) is not needed.
- The minus sign may be used to remove certain types of results (e.g., "facility -private" will eliminate all private facilities from the results). Note: there should be a space before the minus sign and no space after.
To compare variables, use the checkboxes and the "Compare" button on the search results page, as shown in the example below. Variables may be compared across studies. Learn more information about comparing variables.