If Wendy got an "A" in her Anatomy and Physiology class, then her boyfriend took her out to celebrate. Her boyfriend did take her out to celebrate. Therefore, Wendy did get an "A" in her Anatomy and Physiology class. This argument is
A) deductive, valid
B) deductive, invalid
C) inductive, strong
D) inductive, weak

Question

Quizplus · Accepted Answer

The argument is deductive but invalid because it commits the logical fallacy of affirming the consequent. Just because her boyfriend took her out to celebrate does not necessarily mean the reason was that Wendy got an "A" in her Anatomy and Physiology class; there could be other reasons for the celebration.

If Wendy Got an "A" in Her Anatomy and Physiology