Classroom and behaviour management difficulties are consistently reported among the top reasons given by both novice and experienced teachers for leaving the profession. In order to successfully prepare and retain teachers, it is imperative that we understand the factors related to issues of classroom and behaviour management that may influence their decision to remain in the field. This study explored the development of preservice special education teachers' self-efficacy for classroom and behaviour management as they progressed through a four-semester professional development sequence. Findings indicated that although self-efficacy levels were variable across semesters, statistically significant changes in group self-efficacy levels were noted when compared to beginning levels. Despite noted increases in self-efficacy levels, participants continued to express a need for training in evidence-based practices and strategies for addressing extreme behaviours. Implications and limitations are discussed.