This study examined the work-related stress experienced by principals and teachers in public schools. The researchers worked under the assumption that some of the stress related to a job situation comes from the environment. Condensed versions of two questionnaires developed by Williams (measuring stress experienced by teachers) and Jankovich (measuring stress experienced by principals) were mailed to a random sample of 300 teachers and 270 principals in the Alberta, Canada, province. The data were analyzed according to the problems posed by the study. Four observations made as a result of the findings may lead to a better understanding of occupational stress and research on stress in organizations: (1) the main stress factors identified were similar to those in previous studies, suggesting a stability of factor structures and the possibility that stress factors can be identified for work groups; (2) background variables did not contribute significantly to overall work stress--again, consistent with previous studies--suggesting that work-related stress is not related to background variables; (3) personal life stress, as in previous studies, failed to account for variance in overall work stress, suggesting work stress results from experiences on the job; and (4) a very significant difference occurs between teachers and principals in their stress experience. Teachers face frequent encounters with high stress, whereas principals infrequently encounter highly stressful situations. Nine tables and a reference list are included. (MD)