This study was undertaken to examine the development and ongoing adjustment of a male-to-female transsexual. Relying primarily on interviews with the case subject, selected friends and family members, the research attempted to uncover incidents which were critical in this person's post operative psychological and social adjustment. The interviews were conducted in accordance with guidelines set down by Flanagan (1954). The incidents were classified in accordance with the eco-systemic framework put forth by Conger (1981). This theoretical framework emphasized the context within which the incidents occurred. Psychological and social adjustment were assessed by three standardized instruments: The Minnesota Multiphasic Personality Inventory (Hathaway & McKinlcy, 1967); The Social Support Questionnaire (Sarason, Lcvinc & Basham, 1983); and The Family Assessment Measure (Skinner, Steinhaucr, & Santa-Barbara, 1984) . During the course of the interviews a total of 30 "critical incidents" were revealed. Of the 30 incidents, 22 of them were classified at the "community" level of analysis. This result underscored the importance of various community level systems or groups, at both the pre- and post operative stages. Once classified, the incidents were rated, by both the case subject and case investigator, in terms of relative importance to the individual's post operative adjustment. These incidents were then discussed in terms of three primary themes: acceptance versus rejection, competency versus incompetency, and isolation versus belonging. In addition to the critical incidents, a series of ongoing situational influences were revealed during the interview process. These influences were also classified in terms of Conger's (1981) eco-systemic classification system. The situational influences were discussed in terms of two primary themes: personal style and interpersonal relationships. / Education, Faculty of / Educational and Counselling Psychology, and Special Education (ECPS), Department of / Graduate