The Magno-Blanket is probably able to relieve arthritic pain in older dogs. A hospital study of people suffering from severe joint pain found that 76 percent of those who were treated with magnets reported reduced pain after just 3 weeks. Dogs and humans have similar physiologies and the Magno-Blanket brings magnets into the same proximity to the dog's joints as they were to patients' joints in the hospital study.Conclusion of the argument:
The Magno-Blanket is probably able to relieve arthritic pain in older dogs. Support for the conclusion:
A hospital study of people suffering from severe joint pain found that 76 percent of those who were treated with magnets reported reduced pain after just 3 weeks. Dogs and humans have similar physiologies and the Magno-Blanket brings magnets into the same proximity to the dog's joints as they were to patients' joints in the hospital study.We see that, at the foundation of the argument is that assumption that, since people treated with magnets reported reduced pain, it is likely that magnets cause reduction in pain.
Which one of the following, if true, most strengthens the argument?This is a Strengthen question, and the correct answer will be the choice that strengthens the support for the conclusion.
(A) The Magno-Blanket is likely to be effective on cats and other pets as well if it is effective at reducing joint pain in arthritic dogs.The fact that the Magno-Blanket is likely to be effective on other animals IF it is effective in reducing pain in dogs does not mean that it is in fact effective on dogs.
In other words, this choice brings up something that basically follows from the conclusion of the argument rather than a reason to believe the conclusion of the argument.
Eliminate.
(B) Magnets have been shown to be capable of intensifying the transmission of messages from people's nerve cells to their brains.Since there's no clear reason to believe that "intensifying the transmission of messages from people's nerve cells to their brains" results in pain reduction, this choice does not strengthen the case for the conclusion.
Eliminate.
(C) There are currently fewer means of safely alleviating arthritic pain in dogs than in humans.The fact that there are fewer means of alleviating pain in dogs than in humans does not mean that this particular method of using the Magno-Blanket will work.
Eliminate.
(D) The patients in the hospital study suffering from severe joint pain who, after being treated with magnets, did not report reduced pain tended not to be those suffering from the most severe pain.The fact that those suffering with the most severe pain did not report reduced pain does not indicate that the magnets worked.
After all, there's nothing special about "the most severe pain" such that one would expect that something that actually works would not work on the most severe pain.
So, this information on exactly who did not report reduced pain doesn't materially add to what we already know, which is that most people reported reduced pain while some didn't.
Eliminate.
(E) Most of the patients in the hospital study suffering from severe joint pain who received a placebo rather than treatment with magnets did not report reduced pain.This choice is interesting because it indicates the following.
When the presumed cause, magnet treatment, was present, the effect, reduced pain, was also present, and, when the presumed cause was not present, the effect was not either.
That information is interesting because it confirms the association between a single variable, magnet treatment, and reduced pain.
After all, the fact that reduced pain occurred only with magnet treatment even though, presumably, everything else was basically the same tends to indicate that the magnet treatment was indeed the cause of the reduced pain.
So, this choice strengthens the aspect of the argument involving the connection between magnet treatment and reduced pain and thus strengthens the support for the final conclusion about dogs.
Keep.
Correct answer: E