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Chemical pregnancy tests

Expert replies
by RumpelThickSkin » Fri Jul 09, 2010 12:28 am
Chemical pregnancy tests that measure the presence of human chorionic gonadtropin (HCG) sometimes exhibit a false negative, indicating that the woman is not pregnant when in fact she is; the tests can also give a false positive response, indicating that the woman is pregnant when she actually is not. Consumers should seek the pregnancy test with the lowest proportion of false negative results in order to most accurately detect pregnancy with an at-home test.


The conclusion to the left is most strongly supported by which of the following, if true?



A. Some ultrasounds can detect pregnancy as early as one week into the gestation.

B. Early symptoms of a pregnancy can include nausea, increased hunger, and disturbed sleep patterns.

C. Prenatal medical supervision should begin as soon after conception as possible.

D. All at-home pregnancy tests have the same rate of inconclusive test results.

E. All at-home pregnancy tests produce the same proportion of false positive result

[spoiler]OA : after initial discussion [/spoiler]
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Source: — Critical Reasoning |

by apex231 » Fri Jul 09, 2010 1:46 am
E is good -> Since all at-home pregnancy tests produce the same proportion of false positive result then the best test is the one that has the lowest proportion of false negative results also.
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by prepgmat09 » Fri Jul 09, 2010 6:02 am
IMO E.

If all other at home tests have the same proportion of false positive result, then, in order to maximise the chances of test correctness, the test with lowest proportion of false negative results should be used.
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by diebeatsthegmat » Fri Jul 09, 2010 10:58 am
RumpelThickSkin wrote:Chemical pregnancy tests that measure the presence of human chorionic gonadtropin (HCG) sometimes exhibit a false negative, indicating that the woman is not pregnant when in fact she is; the tests can also give a false positive response, indicating that the woman is pregnant when she actually is not. Consumers should seek the pregnancy test with the lowest proportion of false negative results in order to most accurately detect pregnancy with an at-home test.


The conclusion to the left is most strongly supported by which of the following, if true?



A. Some ultrasounds can detect pregnancy as early as one week into the gestation.

B. Early symptoms of a pregnancy can include nausea, increased hunger, and disturbed sleep patterns.

C. Prenatal medical supervision should begin as soon after conception as possible.

D. All at-home pregnancy tests have the same rate of inconclusive test results.

E. All at-home pregnancy tests produce the same proportion of false positive result

[spoiler]OA : after initial discussion [/spoiler]
E here too
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by outreach » Fri Jul 09, 2010 11:47 am
+1 e
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by lkm » Fri Jul 09, 2010 11:47 am
One more for (E)
The RULE Breaker
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I am born to fly, not to live in boundaries
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by reply2spg » Thu Jul 22, 2010 11:09 am
This is similar to one of the OG questions and answer is E
RumpelThickSkin wrote:Chemical pregnancy tests that measure the presence of human chorionic gonadtropin (HCG) sometimes exhibit a false negative, indicating that the woman is not pregnant when in fact she is; the tests can also give a false positive response, indicating that the woman is pregnant when she actually is not. Consumers should seek the pregnancy test with the lowest proportion of false negative results in order to most accurately detect pregnancy with an at-home test.


The conclusion to the left is most strongly supported by which of the following, if true?



A. Some ultrasounds can detect pregnancy as early as one week into the gestation.

B. Early symptoms of a pregnancy can include nausea, increased hunger, and disturbed sleep patterns.

C. Prenatal medical supervision should begin as soon after conception as possible.

D. All at-home pregnancy tests have the same rate of inconclusive test results.

E. All at-home pregnancy tests produce the same proportion of false positive result

[spoiler]OA : after initial discussion [/spoiler]
Sudhanshu
(have lot of things to learn from all of you)
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