You have observed that every time you do 30 minutes of cardio exercise before taking an exam you get an A. You therefore conclude that to get an A on an exam, all you have to do is 30 minutes of cardio exercise before you take an exam. You have committed the
A) fallacy of composition.
B) fallacy of inductive reasoning.
C) post hoc, ergo propter hoc fallacy.
D) fallacy of division.

Question

Quizplus · Accepted Answer

The conclusion that doing 30 minutes of cardio exercise before an exam is the cause of getting an A is based on the post hoc, ergo propter hoc fallacy, which assumes that because one event occurred before another, it must have caused it. The observed correlation may not necessarily indicate causation.

You Have Observed That Every Time You Do 30 Minutes