The 121 scales in this bibliography are measures requiring the observation of a particular set of actions and the recording, usually at a later time, of some inference or judgment concerning the observed actions. Judgment may be in terms of an indication of the presence, degree, or frequency of a behavior. This list includes scales for use with business and school groups and handicapped and non-handicapped individuals or groups. Most of the scales target age 13 and above. This document is one in a series of topical bibliographies from the Test Collection (TC) at Educational Testing Service (ETS) containing descriptions of more than 18,000 tests and other measurement devices prepared by commercial publishers, teachers, educational institutions, professional associations, departments of education, counselors, etc. Each description contains the following basic information: TC Accession Number (a six-digit identification number assigned by the Test Collection); the title of the instrument; personal or institutional author; year of publication or copyright; availability source; grade level for which test is suitable; age level for which test is suitable; and abstract. Other information, which is provided when known, includes subtests, number of test items, and time required to complete the test. Information on accessing the Test Collection via Internet concludes the document. (HAC)