Some people doubt the truthfulness of Freud's theory,citing the fact that he was a cocaine user.This highlights which fallacy?

Question

Quizplus · Accepted Answer

The statement is dismissing the truthfulness of Freud's theory based on his personal behavior of cocaine use in the past. This is an example of the genetic fallacy, which is judging the quality or truthfulness of something based on its origin, source, or history.

Some People Doubt the Truthfulness of Freud's Theory,citing the Fact