Colette received an unusually high grade of A on her first biology test and a B+ on the second,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 suggests that extreme scores on a test are likely to be followed by less extreme scores on a subsequent test. Colette's high grade on her first test was likely due to chance and thus her subsequent lower grade is a regression toward her true mean performance.

Colette Received an Unusually High Grade of a on Her