What is meant by regression toward the mean? Give several examples.

Question

Quizplus · Accepted Answer

The Answer is Consider a group of individuals all with the same X score above (or below) the mean of X; if the correlation is less than perfect, the group will, on the average, be closer to the mean of Y than they were to the mean of X (in standard deviation units). Examples: children who are heaviest at age 6 will, on the average, be somewhat less than the heaviest as adults; the students who perform the poorest in English will, on the average, do somewhat better (relative to the group) in math.

What Is Meant by Regression Toward the Mean? Give Several