This technical manual is presented to assist those using the Audit of Principal Effectiveness, an 80-statement evaluation instrument designed to determine teachers' perceptions of principals' effectiveness, allow principals to obtain feedback from teachers regarding strengths and weaknesses, and provide a useful tool for researchers studying school principals. Three "Domains" represent major areas of focus used in the development of the instrument; factors within each domain represent the research-based, conceptual issues that evolved during the analysis of items related to principal effectiveness. In the domain on "organizational development," factors include: (1) organizational direction, (2) organizational linkage, and (3) organizational procedures. The "organizational environment" factors include: (1) teacher relations, (2) student relations, (3) interactive processes, and (4) affective processes. Finally, in the domain on "educational reform," factors include instructional improvement and curriculum improvement. Statistical reliability for factors is indicated, and principles of administration for the instrument are given. Use of the instrument for feedback, professional development, and research are discussed; and information regarding interpretation of results, permission and cost for use, and a copy of the instrument complete with answer sheets are provided. (WTH)