"Psychometrics...is the methodology that deals with designs, administrations, and interpretations of measurement on individuals’ constructs such as abilities, attitudes, personality, knowledge..." Tests & measures are the instruments, surveys, questionnaires and more designed to assess these constructs.
Quote by Hua-Hua Chang in theInternational Encyclopedia of the Social Sciences. Ed. William A. Darity, Jr.. 2nd ed. Detroit: Macmillan Reference USA, 2008. p587-590.
Tests are either commercial or unpublished.
See the American Psychological Association's (APA) FAQ on how to find published and unpublished psychological tests.