When should the Supervising Licensee ensure that the Assistant is effectively utilizing all three elements of the treatment protocol?

The correct choice emphasizes the importance of monitoring the implementation of treatment protocols whenever a new protocol is introduced. This point is critical because each protocol may have specific goals, techniques, and strategies that need to be understood and effectively utilized by the Assistant to ensure successful treatment outcomes.

When a new protocol is introduced, it is essential for the Supervising Licensee to confirm the Assistant's understanding and application of all components of the protocol. This includes assessing their competency in using the techniques involved, adhering to guidelines, and measuring outcomes effectively. By focusing on this initial introduction, the Supervising Licensee can provide necessary feedback, support, and adjustments to ensure the treatment is being delivered correctly from the start.

In contrast, assessing the Assistant's use of the treatment protocol solely during evaluations, every session, or at the end of treatment would not provide the same opportunity for immediate correction and guidance needed when adapting to a new protocol. Regular evaluation and supervision are beneficial, but initial training and understanding when a new protocol is introduced are paramount for quality care.