This study examined the relationship between perceptions of trainers' problems with professional competence (PPC), and the resolution of those competency issues, with trainee professional commitment to mental health professions and self-efficacy for addressing PPC they encounter in others. Data were obtained from 233 trainees enrolled in mental health graduate training programs throughout the United States. The findings indicated trainees who reported higher levels of impact by trainers exhibiting competency issues (including psychological distress) and discomfort addressing trainer PPC endorsed lower professional commitment. Additionally, frustration and disruption due to trainer PPC, discomfort addressing PPC, and need for more information about how to address PPC were associated with decreased trainee self-efficacy for addressing PPC. Trainees who reported knowing the policies and procedures to follow when encountering PPC reported higher self-efficacy for addressing their concerns about trainers and peers. Trainee satisfaction with how trainer PPC was addressed was not related to professional commitment or self-efficacy, but post-hoc analyses indicated that trainees who felt their concerns related to trainer PPC were addressed had higher self-efficacy for talking to a trainer about another trainer's PPC in comparison to trainees whose concerns were either not addressed or they were unaware whether the trainer PPC had been addressed. Implications for training are presented. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]