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I have been reading a lot about yes/no analysis used in

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I have been reading a lot about yes/no analysis used in [#permalink] New post 23 Aug 2009, 05:10
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I have been reading a lot about yes/no analysis used in solving CR questions...please can someone shed some light ?
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Re: what is the YES/NO analysis ? [#permalink] New post 23 Aug 2009, 07:02
I think it's a Kaplan strategy that you use to solve assumption questions (i.e. Which of the following is an assumption the argument above depends?). You need to negate every option A to E and consider them with the argument. If by negating one option, the argument is no longer logical/doesn't make sense any more, then that's your answer (supposedly).
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Re: what is the YES/NO analysis ? [#permalink] New post 24 Aug 2009, 16:04
This is the first I've heard of this strategy. Is it useful or reliable?

Anyone use it and have success?
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Re: what is the YES/NO analysis ? [#permalink] New post 24 Aug 2009, 21:22
adamv30 wrote:
This is the first I've heard of this strategy. Is it useful or reliable?

Anyone use it and have success?


What DanaJ said is exactly correct, If you read the Power Score Bible for critical reasoning, it explains the method very clearly, this method works 100%. I have personally used it. But dont use this to every answer choice, i mean all the five answer choice of assumption questions, that would be time consuming. Once you find your answer you can verify whether your answer is the correct answer by using this technique. And you can use this method when there are two close answers in assumption questions, most of the time we will be encountered in such a situation, at that time this method helps to eliminate the wrong one easily.
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Re: what is the YES/NO analysis ? [#permalink] New post 25 Aug 2009, 00:54
illustrate with example pls
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Re: what is the YES/NO analysis ? [#permalink] New post 25 Aug 2009, 03:59
boeinz wrote:
illustrate with example pls


try with any assumption questions yourself, if you get any doubt , post the same question here for discussion.
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Re: what is the YES/NO analysis ? [#permalink] New post 26 Aug 2009, 08:10
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An Assumption is something that MUST be true for the conclusion to logically follow. That means if we make an answer choice UNTRUE, the correct answer should demolish the conclusion, while the incorrect answers will leave it intact. Here's an example:

Argument: Poisons are Harmful, therefore Chemical X should not be handled.

Tempting Answer Choice: The FDA rates Chemical X as "Intolerably Unsafe"

True Assumption: Chemical X is a poison.

Denial Test:

Poisons are harmful, and Chemical X is "Moderately Unsafe". Therefore, Chemical X should not be handled.

Poisons are Harmful, and Chemical X is NOT a poison. Therefore, Chemical X should not be handled.

When we negate our prospective first assumption, we end up with an argument that might still be true; in other words, the tempting answer choice isn't necessary for the argument, and therefore isn't correct. When we negate our second assumption, we end up with gobbledegook; the second assumption MUST be true for the conclusion to follow, and therefore is correct.
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Re: what is the YES/NO analysis ? [#permalink] New post 26 Aug 2009, 18:07
KapTeacherEli wrote:
An Assumption is something that MUST be true for the conclusion to logically follow. That means if we make an answer choice UNTRUE, the correct answer should demolish the conclusion, while the incorrect answers will leave it intact. Here's an example:

Argument: Poisons are Harmful, therefore Chemical X should not be handled.

Tempting Answer Choice: The FDA rates Chemical X as "Intolerably Unsafe"

True Assumption: Chemical X is a poison.

Denial Test:

Poisons are harmful, and Chemical X is "Moderately Unsafe". Therefore, Chemical X should not be handled.

Poisons are Harmful, and Chemical X is NOT a poison. Therefore, Chemical X should not be handled.

When we negate our prospective first assumption, we end up with an argument that might still be true; in other words, the tempting answer choice isn't necessary for the argument, and therefore isn't correct. When we negate our second assumption, we end up with gobbledegook; the second assumption MUST be true for the conclusion to follow, and therefore is correct.


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Re: what is the YES/NO analysis ? [#permalink] New post 10 Sep 2009, 10:58
Yes is the positive form. (e.g. Did you walk your dog? Yes, I walked my dog). No is the negative form ("I did not walk my dog"). The alternative is maybe ("maybe yes", and "maybe no").
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Re: what is the YES/NO analysis ? [#permalink] New post 10 Sep 2009, 13:17
Seems like it works but IMO it's a bit time consuming, I'd only use it as a confirmation in a tough question.
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Re: what is the YES/NO analysis ?   [#permalink] 10 Sep 2009, 13:17
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