Final answer:
Brianna's parents are using positive reinforcement by giving her a dollar every time she does the dishes.
Step-by-step explanation:
Brianna's parents are using positive reinforcement to encourage her to do the dishes. Positive reinforcement involves providing a reward or incentive for a desired behavior. In this case, Brianna earns a dollar every time she does the dishes, which serves as a motivator for her to continue doing this task. The reward enhances the likelihood of the behavior being repeated in the future.
Positive reinforcement is a psychological concept involving the presentation of a rewarding stimulus or incentive following a desired behavior. This increases the likelihood that the behavior will be repeated. It is a strategy used in various fields, such as education, psychology, and parenting, to encourage and reinforce positive actions.