Prepare for the University of Central Florida SPA3472 exam. Study with comprehensive resources, including flashcards and multiple choice questions. Gain insights into behavioral methods in communication disorders. Boost your confidence and get exam-ready!

Back-up items in a token economy are indeed defined as additional rewards that can be exchanged for tokens. In a token economy, individuals earn tokens through specific desired behaviors, which can later be exchanged for various back-up items. These back-up items serve to reinforce the targeted behavior by providing tangible rewards that the individual values.

The use of back-up items is foundational in motivating individuals to engage in desired behaviors, as the items need to hold interest or utility for the participants. This system fosters an organized approach to behavior modification and allows for flexibility in choice, as participants may select their preferred rewards.

Understanding the role of back-up items is crucial for effectively implementing a token economy, as the selection of these items can significantly influence the success of the behavior modification program.