Requiring Joaquin to do the laundry before he can play volleyball with his friends is an example of the Premack Principle.
The Premack Principle can be defined as the process of using reinforcer to stop unwanted behavior.
Based on the scenario the parents are using reinforcement on their son so as to stop the unwanted behavior or to correct their child behavior.
Therefore this an example of Premack Principle.
Learn more about Premack Principle here:https://brainly.com/question/13403587
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