PubMed Biomedical IndexA good source of abstracts for validated measurement tools. Not a source of full-text content or of research instruments.
Find Specific Test instrument name or acronym, scale, observation, questionnaire, etc.
Find Test for a Variable by keyword and additional keywords or Medical Subject Heading (MESH)
Find Test Reviews Use keywords such as validity, reliability or use MeSH terms such as validation studies[pt], validation studies as topic[mh], reproducibility of results[mh]