A longitudinal quasi experiment tested the effects of a relapse prevention and transfer enhancement posttraining intervention on the self-efficacy, transfer behavior, and performance of a sample of nurses who attended a two-day training program on the McGill Model of Nursing. ANCOVA results failed to support the effectiveness of the intervention; in fact, participants in the transfer enhancement condition had the lowest transfer behavior and performance except when it was combined with relapse prevention. However, all trainees showed significant increase in self-efficacy, behavior, and performance. Results are explained based on training program effectiveness, organizational context, and transfer system. A positive transfer climate and factors in the transfer system likely contributed. Implications discussed include the need to conduct a transfer of training needs analysis (TTNA) and a contingency approach to posttraining transfer interventions.