The DSM V now includes a section that provides a range of tests and measures. The American Psychological Association, which publishes the DSM V makes those tests and measures freely available online here.

From York University, a lists of tests that are copyright cleared for student use in research projects for course work.

An index of freely-available, full-text, online tests and measures, maintained by a faculty member at Texas Tech University.

A PDF e-book published by the CDC. Contains measures for Attitude and Belief, Psychosocial and Cognitive, Behavior, and Environmental Assessments.

A searchable or browsable database of freely downloadable tests and measures associated with behaviors and attitudes toward health and HIV prevention.

An index to tests and measurement tools used in psychology, sociology, health, marketing, management, and more. Note this is an index only--the tests themselves are not provided.

A research center that investigates thoughts, feelings, and associations that exist outside of conscious control. Check out the "For Researchers" section--especially the study materials--for research instruments, stimuli, etc.

A database of documents and articles that may lead you to various tests and measuring instruments. Click "ERIC Descriptors," which will help you browse by category. Some documents can be downloaded for free. For those that can not be immediately accessed, search for them by title in Summon and request via Interlibrary Loan