- Fri Jan 21, 2011 12:00 am
#26325
Complete Question Explanation
Justify the Conclusion—PR. The correct answer choice is (A)
The principle states that one should criticize another person only if the criticism does not harm the person criticized and the critic expects to benefit someone other than himself. Since "only if" is a necessary condition indicator, both of these requirements must be met in order for the criticism to be sanctioned.
The application of the principle states that Jarrett should not have criticized Ostertag. The only reason given is that the defects were so obvious that pointing them out benefitted no one. This has no bearing on whether Jarrett’s criticism is warranted or not. In order to justify the conclusion, we need to show either that Ostertag was seriously harmed by the criticism, or that Jarrett did not expect his criticism to benefit anyone.
Answer choice (A): This is the correct answer choice. If Jarrett knew that the defects were obvious and that pointing them out would benefit no one, he clearly could not have expected that his actions would benefit anyone else. By the contrapositive property of the principle stated above, Jarrett should not have criticized Ostertag’s essay.
Answer choice (B): This answer choice suggests that if Ostertag were aware of the defects in his essay, then Jarrett’s criticism would not have benefitted him. However, we cannot know whether Ostertag had any awareness of these defects. Furthermore, even if he did, it is irrelevant whether anyone actually benefited from Jarrett’s criticism. What matters is whether Jarred himself believed that anyone would benefit from the criticism. This answer choice does not provide any information about Jarrett’s beliefs.
Note that the conclusion can also be proven by evidence showing that Ostertag was seriously harmed by Jarrett’s criticism. All we know, however, is that Ostertag did not benefit from it. This is not enough to show that Ostertag was seriously harmed by Jarrett’s criticism.
Answer choice (C): Even if Jarrett knew that the criticism might antagonize Ostertag, this does not establish that the criticism would seriously harm Ostertag and therefore does not prove the conclusion.
Answer choice (D): The hope of gaining prestige is not the same as believing the criticism would benefit someone other than Jarrett. This answer is therefore irrelevant to the conclusion.
Answer choice (E): It does not matter whether Jarrett did or did not expect his criticism to benefit Ostertag. To prove the conclusion, we must know that Jarrett did not expect to benefit anyone other than himself. It is entirely possible that Jarrett expected his criticism to benefit other people in the class (just not Ostertag). Therefore, this answer choice does not trigger the contrapositive of the principle and fails to prove the conclusion.
Justify the Conclusion—PR. The correct answer choice is (A)
The principle states that one should criticize another person only if the criticism does not harm the person criticized and the critic expects to benefit someone other than himself. Since "only if" is a necessary condition indicator, both of these requirements must be met in order for the criticism to be sanctioned.
- Criticize Criticism does not harm the person criticized AND Critic expects to benefit someone other than himself
The application of the principle states that Jarrett should not have criticized Ostertag. The only reason given is that the defects were so obvious that pointing them out benefitted no one. This has no bearing on whether Jarrett’s criticism is warranted or not. In order to justify the conclusion, we need to show either that Ostertag was seriously harmed by the criticism, or that Jarrett did not expect his criticism to benefit anyone.
Answer choice (A): This is the correct answer choice. If Jarrett knew that the defects were obvious and that pointing them out would benefit no one, he clearly could not have expected that his actions would benefit anyone else. By the contrapositive property of the principle stated above, Jarrett should not have criticized Ostertag’s essay.
Answer choice (B): This answer choice suggests that if Ostertag were aware of the defects in his essay, then Jarrett’s criticism would not have benefitted him. However, we cannot know whether Ostertag had any awareness of these defects. Furthermore, even if he did, it is irrelevant whether anyone actually benefited from Jarrett’s criticism. What matters is whether Jarred himself believed that anyone would benefit from the criticism. This answer choice does not provide any information about Jarrett’s beliefs.
Note that the conclusion can also be proven by evidence showing that Ostertag was seriously harmed by Jarrett’s criticism. All we know, however, is that Ostertag did not benefit from it. This is not enough to show that Ostertag was seriously harmed by Jarrett’s criticism.
Answer choice (C): Even if Jarrett knew that the criticism might antagonize Ostertag, this does not establish that the criticism would seriously harm Ostertag and therefore does not prove the conclusion.
Answer choice (D): The hope of gaining prestige is not the same as believing the criticism would benefit someone other than Jarrett. This answer is therefore irrelevant to the conclusion.
Answer choice (E): It does not matter whether Jarrett did or did not expect his criticism to benefit Ostertag. To prove the conclusion, we must know that Jarrett did not expect to benefit anyone other than himself. It is entirely possible that Jarrett expected his criticism to benefit other people in the class (just not Ostertag). Therefore, this answer choice does not trigger the contrapositive of the principle and fails to prove the conclusion.