Julie was euphoric after learning of her acceptance into the medical school of her choice. after a few weeks, however, she feels no emotional excitement when she thinks about her admission to medical school. this change in her feelings can best be explained in terms of the: relative deprivation principle. adaptation-level principle. catharsis hypothesis. cannon-bard theory. opponent-process theory.

This change in her feelings can best be explained in terms of the "adaptation-level principle".

Adaption Level Principle refers to the propensity individuals need to rapidly adjust to another circumstance, until the point when that circumstance turns into the standard. Once the new circumstance is typical, another new experience is required - it continually raises the level for what is new or energizing as each new thing turns into the standard.