This nightmare question has spawned a nightmare thread. Look at the world you've wrought, LSAC!
Here are my thoughts on the last couple posts:
- both (A) and (B) refer to low sales figures broadly. I love the distinction between OVERALL sales figures and the SPECIFIC aim of promoting NEW products, but that distinction doesn't really have a wedge that differentiates between (A) and (B).
- be careful with the "even if ... it could still be ...". These answers don't have to be perfect to weaken.
For (A), "even if sales would have been WORSE without the campaign, that doesn't PROVE that the campaign was well conceived. It only seems to show that the existence of the campaign had SOME positive effect ... it lessened the damage."
But similarly, for (B), "even if something else caused the low sales figures, that doesn't prove that the campaign was well conceived."
So it's not like (A) or (B), in its attacking form, would REFUTE the conclusion. We're just asking ourselves, "which one makes us backpedal more?"
Ask yourself, in which one of these conversations does the author receive a more powerful rebuttal?
Author: Campaign X was a crappy campaign. Look at these low sales figures.
Rebuttal: The sales would have been even worse without Campaign X.
Author: Big whoop. If I say it was ill conceived to jump across that canyon using only a diving board, would you say, "No it wasn't, you would have fallen even sooner without the diving board"?
Author: Campaign X was a crappy campaign. Look at these low sales figures.
Rebuttal: Actually, the low sales figures were caused by something else.
Author: Oh ... well ... then, I guess I haven't given you any reason yet to believe that campaign X was crappy.
(B) beats (A) because (B) removes the only premise the author had to stand on.
(A) doesn't do that. It muddles the picture somewhat and makes it seem like the campaign had at least some value, but it's not creating a powerful objection.
--- The reason Q13 and Q15 are different is because, though they both deal with correlation to causality, the conclusions make different claims.
Q15 is basically saying "X did a poor job of bringing about Y."
Q13 is saying "X is powerless to do ANYTHING about Y."
If you establish that X did ANYTHING to help bring about Y, you have refuted Q13. But you haven't yet refuted Q15, because you can take a step in the right direction while still doing a poor job of reaching the destination.