The problem of this study was to assess the effects of a three-day residential human relations laboratory on flexibility and supervisory attitudes. An instrument constructed by Felker and Smith designed to further 'operationalize' the construct of philosophic-mindedness was used to measure flexibility. Supervisory attitudes were measured by an instrument developed by Scientific Methods, Inc., entitled Managerial Values. It was hypothesized that flexibility would be increased by human relations training; also that 9/9 attitudes toward supervision would be increased. Both hypotheses were supported. Differences between means on flexibility and 9/9 attitudes at times 1, 2, and 3, were significant at the .01 level for the experimental group while there were no significant differences between means for the quasi-control group. Flexibility scores for administrators in this study were compared with scores by philosophy of education students as reported by Smith and Felker. (author/nl).