The administrative and supervisory competencies that a medical technology student should acquire before graduation were investigated. Selected medical technology laboratory supervisors and administrative technologists in the Houston-Galveston, Texas area were surveyed to determine the tasks performed by the medical technology laboratory supervisor. A Clinical Laboratory Supervision Survey was also sent to four national random samples of members of the American Society for Medical Technology, and 565 usable responses were obtained. Based on a literature review and the respondents' rankings of task importance and time requirements, a hierarchical scale of task categories was derived as follows: direct supervision tasks and monitoring tasks (same ranking); general operations tasks, personnel relations tasks, communications tasks, and education tasks. Knowledge base requirements for 15 of the supervisory tasks were also established. Considerable differences were found in the clinical laboratory functions of the administrative technologists and the laboratory supervisors. Appended materials include: questionnaires and cover letters and study findings regarding tasks performed in direct supervision, general operations, education, and communications. (SW)