No database provides free, full-text copies of all tests and measurements.
The person who creates the test decides if, when, and how it will be published. Some publish their tests in books and journal articles. Others have sold the “rights” to their tests to a publishing company, and now the publisher distributes (sells) the test.
Sometimes you can find a complete test in these sources, but most times they just provide you with information about the test or a shortened version of the test.
You can limit the type of sites you are searching in Google
Sample search: (assessment OR evaluation OR intervention OR questionnaire) AND (intimate partner violence OR domestic partner violence) AND site:.gov
Warning: always scrutinize for quality and reliability when searching in Google
Bernadette Lear, Librarian at Penn State Harrisburg Library, allowed the University of Chicago LIbrary to borrow elements of her PSYC 571: Tests and Measures Library Guide and use them in this Library Guide. Additional credit to the American Library Association, Association of College and Research Libraries’, Social Work Liaison's Toolkit : Tests and Measures.