Question

which of the following best reflects negative reinforcement?
campbell is scolded when she runs through the house yelling.
antonio is not allowed to watch television until he finishes his worksheet for psychology class.
nicole is praised for having the best psychology project in the class.
bart changes his math class so he doesnt have to see his old girlfriend.
harrison takes the wrong medicine and gets violently ill afterwards.

Explanation:

Negative reinforcement involves removing an aversive stimulus to increase a behavior. Bart changing his math class removes the aversive stimulus (seeing his old girlfriend), which is an example of negative reinforcement. Scolding (Campbell's case) is punishment. Antonio's situation is positive reinforcement (adding a desired stimulus - TV - after a behavior). Praising (Nicole's case) is positive reinforcement. Harrison's case is a consequence (getting ill) but not reinforcement related to behavior increase through stimulus removal.

Answer:

Bart changes his math class so he doesn't have to see his old girlfriend.