The report describes a study designed to analyze nurses' management duties and to identify their tasks in planning, organizing, staffing. leading, communication, decision making, and controlling. A total of 117 supervisory nurses and unit managers from four Western Michigan short-term general hospitals in the 410-540 bed range participated in the survey in February-March 1975. The survey's specially constructed questionnaire (provided in an appendix) contains five sections: the first four cover biographical information, educational and work history, present work situations, and management training; the fifth lists 101 task statements organized into seven functional management areas for each of which respondents completed scales for frequency, importance, and desire for additional training. Although the importance scale was found to be unusable, the other scales were not. The study concluded that: supervisory nurses are managers by definition of the tasks they perform; management tasks, as identified by functional areas, differ between job titles; head nurses demonstrate a high level of management task performance across unit specialties; the presence of unit managers does not affect the pattern of head nurse management task performance; supervisory nurses desire additional training in management tasks; and supervisory nurses feel inadequately trained for their management role. (Author/JR)