Shortly after seeing a quack, several people have recovered from an illness, regaining their former health. The best explanation for their recovery is
A) testing
B) mortality
C) selection
D) regression

Question

Quizplus · Accepted Answer

Regression to the mean is the best explanation, as it suggests that extreme cases tend to return to an average state over time, which can be mistaken for recovery due to treatment.

Shortly After Seeing a Quack, Several People Have Recovered from an Illness