A substantial number of evidence-based treatments (EBTs) are available, but are delivered infrequently in public mental health. To improve the quality of care, some states and systems have focused on EBT training; however, these efforts have rarely included objective measurement of clinician fidelity because of feasibility issues. The primary goal of the current study was evaluating the feasibility of the behavioral rehearsal (BR) method to assess "analogue fidelity" in a children's mental health quality improvement initiative. Results indicated low-but representative-clinician participation. Participants demonstrated greatest improvement at post-training with maintenance or decreases at 6-months (post-consultation). Implications for future use of BR are discussed.