Managerial effectiveness of educational administrators is eroded if they are unable to respond to organizational problems with flexibility. Little has been done to evaluate the effectiveness of workshop experiences in increasing managerial flexibility and awareness of human relations as an important parameter of production. Flexibility can be measured by use of a Philosophic-Mindedness (PM) Flexibility Scale which tests individuals' comprehensiveness, penetration, and flexibility of thought. A Managerial Values Instrument is used to determine administrators' relative concerns for human values or production. Ninety-eight members of the Oregon Compact were given a forced-choice questionnaire integrating these measuring devices, before and after they attended a 2-week human relations laboratory. Forty-nine nonattending members of the Compact participated in the testing and composed the control group. Statistical analysis of the results shows that laboratory participation (1) increased concern for people as indicated by greater cognitive openness, behavioral skill, and understanding of social processes, and (2) increased flexibility as measured by the PM Flexibility Scale. Questions concerning retention of training, relationships between workshop length and impact on participants, and what experiences have the most impact were not answered. (TT)