This sourcebook of mental health related psychological measures consists of approximately 1,100 abstracts. Each of these abstracts provides certain identifying information followed by a brief description of a questionnaire, scale, inventory, test, or other measuring device. Abstracts have been classified and grouped into 45 clusters of instruments sharing a similar purpose, character, or both. Each entry is divided into two major sections. The first section provides identifying information in the following order: (1) title of measuring instrument; (2) source of instrument (article, book, mental health, etc.); name(s) of instrument author(s); and (4) address of the author. The second section is a 200-300 word description of the instrument. Instructions for obtaining a copy of the instrument are presented at the end of each abstract. An author and title index are included. (Author/SE)