Final answer:
The knowledge gained from studying for a test is attributed to eustress, which is the positive form of stress conducive to learning and improving performance.
Step-by-step explanation:
The knowledge you gained from studying for a test is a result of eustress. Eustress is considered the good form of stress, which is low to moderate in intensity and is often associated with positive feelings, optimal health, and performance.
It can improve the quality of our lives and enhance both immediate and delayed recall of educational material. When you study for a test and experience stress, it is often this type of stress that helps motivate and energize you for optimal performance. Eustress is beneficial in challenging situations like exams or athletic events, where it can act as a motivating force.