Answer:
negative reinforcement
Explanation:
According to my research on behavioral therapy, I can say that based on the information provided within the question Brittany used negative reinforcement. This is when an individual removes a specific factor from another person in response to a certain stimuli, which the other person will begin to increase a certain behavior or expect that stimuli to be taken again. Which in this situation the factor being taken away is recess time in order for the student to complete their assignment.
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