What should be prepared in advance of a session regarding materials?

• A. The client’s snack only.
• B. All necessary materials for protocols, reinforcers, and data collection systems.
• C. Only the data collection system.
• D. Only the physical space setup.

Answer: (B)

Preparing materials in advance means gathering everything you’ll need to run the session as planned. This includes items for each protocol or task, any prompts or visuals, the reinforcers and a clear plan for delivering them, and the data collection tools you’ll use to record responses and progress. Having these ready beforehand keeps the implementation faithful to the plan, makes the session flow smoothly, and ensures you can reinforce correctly and capture accurate data. If you only have one piece—like just a snack, or only the data system, or only the space setup—you’ll run into delays, you may miss reinforcers, or you won’t have reliable data to guide decisions. So, all three areas—materials for protocols, reinforcers, and data collection—should be prepared ahead of time.