A student gets a 99 out of 100 on her first quiz in a psychology class, but gets only a 91 on the next quiz. This is a likely example of which of the following?

Question

Quizplus · Accepted Answer

This is an example of regression to the mean, which is a statistical phenomenon where if a variable is extreme on its first measurement, it will tend to be closer to the average on its second measurement. The student's score decreased from an exceptionally high score towards the average.

A Student Gets a 99 Out of 100 on Her