The APA provides guidance in using available resources to find psychological tests. Answers to frequently asked questions are provided in the FAQ

Testing and Assessment Page

A harmonized version of the U.S. National Health Interview Series from the 1960s to the present

The University of Michigan Institute for Social Research (ISR) is the world's largest academic social science survey and research organization.

The GSS contains a standard 'core' of demographic, behavioral, and attitudinal questions, plus topics of special interest. Many of the core questions have remained unchanged since 1972 to facilitate time-trend studies as well as replication of earlier findings. The GSS takes the pulse of America, and is a unique and valuable resource. It has tracked the opinions of Americans over the last four decades.