Colette received a surprisingly high grade on her first biology test. She failed to perform as well on her second test, even though she studied equally for both tests. Which of the following best explains Colette's deteriorating pattern of performance?

Question

Quizplus · Accepted Answer

Regression toward the mean – Colette's first high score may have been an atypical result due to chance, so her second score may have come closer to the average.

Colette Received a Surprisingly High Grade on Her First Biology