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I diagrammed the stimulus as:

Belief in ET -> belief in UFOs
therefore, ~existence of UFOs -> ~belief in ET

I've reread and rediagrammed all of the answer choices after the fact and STILL cannot understand why A was the correct answer.

Help?

carboncopyx wrote:I diagrammed the stimulus as:

Belief in ET -> belief in UFOs
therefore, ~existence of UFOs -> ~belief in ET

I've reread and rediagrammed all of the answer choices after the fact and STILL cannot understand why A was the correct answer.

Help?

Pretty good discussionhere.