by ManhattanPrepLSAT1 Wed Oct 19, 2011 7:03 pm
I agree whole heartedly that notation of conditional relationships does not do much to assist in answering this question. Let me address your primary question here first and then deal with the particular question at hand.
When should one use conditional logic. My view is that I begin notating once I determine that conditional logic will be of use to me - not before, and not after I've completed reading the stimulus. it's not a formulaic thing, it's simply based on when I decide I need it.
Here are 4 things that I look for to help me assess when to use conditional logic.
1. Language cues implying conditional statements, such as "if, if only, all, unless, etc..."
2. The question type. Must be True, Must be False, Sufficient Assumptions, Match the Reasoning/Flaw, and Principle questions have increased use of conditional logic.
3. Repeated terms. In order for the argument to utilize the transitive property A --> B, B ---> C, so A ---> C there needs to be the repetition of terms so that they can weave through them.
4. The location of the question in the section. Somewhere between questions 7-11 we typically see the first question testing conditional logic, between 11-16 we see another one or so, and between 17-25 we see roughly 3 more. Questions that test conditional logic are skewed towards the end of the section.
There is no "smoking gun" so to speak that guarantees that conditional logic is the right way to go, but the accumulation of evidence can be overwhelming sometimes for using conditional logic.
In this case there are the language cues, repeated terms, and the question location is in the appropriate place, but the repeated terms aren't stated in a way that allows one to weave through the statements.
Additionally, the question stem asks us to find the main point of the speaker, and so here, the purpose of the author is almost as important as the statements of the author. The author is speaking against the philosophers and se we would want to shy away from conditional logic. Personally, I can't think of a question that asks you to identify or articulate the conclusion of the argument where conditional logic was helpful.
To this particular question... The philosophers claim that we value happiness only when it is deserved and that this supports the view that something besides happiness has intrinsic value. The conclusion is designed to refute this claim by suggesting that whether one deserves happiness is itself defined in terms of happiness, so it cannot count as something besides happiness that has intrinsic value - best expressed in answer choice (C).
Let's look at the incorrect answers:
(A) challenges the wrong the claim. The argument is designed to refute the notation that something other than happiness has intrinsic value not the notion that people can be deserving of happiness.
(B) is on topic, but again challenges the wrong idea from the stimulus.
(D) can be easily dismissed since according to the stimulus we see requirements of happiness, but nothing that would assure happiness.
(E) relies on the unwarranted assumption that bad people do not make others happy.
Hope that helps, and let me know if you have further questions on this one!