Below are databases with ready access to information on instruments or ready-to-use instruments, including:
| Questionnaires | Interview schedules |
| Checklists | Index Measures |
| Coding schemes / manuals | Rating scales |
| Full text reviews of instruments | Instruments available to download |
Health and Psychosocial Instruments provides ready access to information on measurement instruments (i.e., questionnaires, interview schedules, checklists, index measures, coding schemes/ manuals, rating scales, projective about Health and Psychosocial Instruments (HAPI).
Information about and full text reviews of English-language standardized tests covering educational skills, personality, vocational aptitude, psychology and related areas.
International in scope, this resource provides access to thousands of actual test instruments, most of which are available for immediate download and use in teaching and research. PsycTESTS is an authoritative source of structured information about tests of interest to a variety of fields, and while focused on contemporary instances of test use, has coverage that spans more than a century.