What is a necessary element of Compliance Training during massed trials?

Compliance training during massed trials emphasizes the importance of functional practice because it helps to establish a clear link between commands and responses in a meaningful context. Functional practice involves teaching skills that are directly applicable to a person's everyday life, making the learned behavior more relevant and easier to generalize outside of the training setting.

When individuals engage in tasks that have real-world applications, they are more likely to understand the purpose of their actions, which reinforces compliance. This method supports the integration of skills into routine activities, allowing learners to transfer what they have practiced into practical scenarios efficiently.

In contrast, while the other options may have their own merits in different contexts, they do not address the practical application and the ongoing reinforcement of behaviors needed for effective compliance. Therefore, focusing on functional practice as a necessary element ensures that training results in meaningful improvements in the individual's ability to comply with instructions.