Answer:
In deciding which outcome he will prefer, Martavis is weighing the reinforcement values of his options.
Explanation:
In psychology, reinforcement value refers to the perceived pleasure something will give us. If an action is pleasing or appealing, we will want to do it again, which means it has a high reinforcement value.
In Martavis's case, going to a party obviously seems to have a higher reinforcement value than studying. However, when he thinks that studying this Friday evening will mean more free time throughout the weekend, he perceives a higher value to this action. His choice, in the end, will be the activity that he perceives as more valuable, more appealing.