Question Type:
ID the Flaw
Stimulus Breakdown:
Premises:
NoSmoke has 2 ingredients. A study shows 1 doesn't help with smoking.
Conclusion:
If the other doesn't, NoSmoke is a joke.
Answer Anticipation:
Ingredients vs. mixture? That's screaming Part to Whole. Maybe the ingredients are super effective, but only when combined.
Correct Answer:
(A)
Answer Choice Analysis:
(A) Bingo. This is the Part to Whole flaw answer. I might leave it in case this is really a Whole to Part answer and I'm reversing it, but if I don't see another answer, I'm going with this one.
(B) Wrong flaw (Correlation vs. Causation). This conclusion is saying something doesn't cause an outcome, so it'd be hard to have a jump between correlation and causation.
(C) Wrong flaw (Sampling). While a study is done (which suggests there might be a Sampling flaw), we have no reason to question the sample. We're told that the study was of smokers, and the conclusion is also about smokers.
(D) Wrong flaw (False Choice). The conclusion is just about cravings, not whether it's effective at getting people to quit. If the conclusion was about the effectiveness of the product overall, then this might be in play.
(E) Wrong flaw (Ad Hominem/motivation). There's no accusations that the smoker or the author are biased here.
Takeaway/Pattern: Words like "ingredients" are a huge indicator that you should consider a Part/Whole flaw.
#officialexplanation