What is an example of a reinforcer in behavior modification?

A reward given to a child for completing a desired behavior exemplifies a reinforcer in behavior modification because it directly increases the likelihood that the desired behavior will occur again in the future. In behavioral terms, a reinforcer is any stimulus that strengthens or increases the frequency of a behavior when it follows that behavior.

In this context, when a child completes a desired behavior and is given a reward, whether it's praise, a small treat, or a privilege, it creates a positive association with that behavior. This positive reinforcement encourages the child to repeat the behavior, thus promoting learning and desirable outcomes.

Reinforcement strategies are foundational in applied behavior analysis, which is commonly used in working with individuals with autism. Implementing such techniques requires an understanding of how to effectively motivate behavior change through appropriate rewards or reinforcers that are meaningful to the individual.