When researchers have tested the accuracy of biorhythm charts by examining occupational accidents in light of the charts' predictions,they have found the charts:
A)to be useful only for those working in outdoor occupations.
B)to be useful only for women and not for men.
C)to be useful only for healthy individuals with no chronic illnesses.
D)to be useless.

Question

Quizplus · Accepted Answer

Researchers have found no evidence to support the claims made by biorhythm charts, and therefore conclude that they are useless.

When Researchers Have Tested the Accuracy of Biorhythm Charts by Examining