This investigation examines the differences in perception of the role of staff-development trainer in organizations, a role identified as an emerging occupation, held by three professional groups. The focus is on sources of stress and strain in the job performance of the trainer. Purposes of the study are (1) to collect data from three coworker groups, administrators, directors of nursing, and trainers relative to the role of the trainer, (2) to examine differences in perception between the groups, (3) to examine the differences as potential sources of stress when viewed from the perspective of role theory, and (4) to delineate the role. This study indicates that knowledge about behavioral sciences and skill at interpersonal communications are important areas in both background and in personal qualities needed. Nurses and trainers widely perceive a lack of commitment to training by administrators. This relates to sources of strain in the role of trainer. There is a generally held expectation in the field that the role will grow in importance and scope.