Anecdotal evidence fallacy is characterized as the flaw in reasoning when the speaker substantiates the claim using a personal experience in lack of a logical evidence.
The given example would be considered '<u>anecdotal evidence fallacy</u>' as the claim 'all students cheat' is based on a 'personal experience'('I've caught three...this year') which is insufficient to prove the validity of the claim and make it unsound. It fails to support the claim logically and thus, makes the argument flawed.
