This study investigated congruence in ego stage and group relevant aspects of teachers' and learners' personalities, and between their preferences for and perceptions of group work and personality behaviors, as related to learners' learning achievement and to teacher and student satisfaction with learning group membership. Subjects (130 learners and seven teachers) were given the Ideal Group and Self-Description questionnaires, and measures of perception and satisfaction. Each teacher also constructed a test of terminal student proficiency. Overall evidence from analysis of the ego stage dyadic congruency, the group relevant congruency, and the preference and perception congruency variables in association with teacher and learner satisfaction and learning achievement, did not form any assumptions as to their predictive relationships. The data did reveal some strength by the ego stage dyadic congruency variable, especially with the dependent variables of learner achievement. Supplemental analysis of the eight ego stages indicated that teacher learner dyadic congruency was not significantly related to learner satisfaction. Reasons for the findings were suggested, along with wider implications. Abstract of this thesis is available from Eric Document Reproduction Service as AC 006 250. (LY)