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Some psychiatric studies indicate that among distin-

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Senior Manager
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Joined: 28 Aug 2010
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Some psychiatric studies indicate that among distin-  [#permalink]

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New post 22 Dec 2010, 17:14
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A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

40% (02:32) correct 60% (01:00) wrong based on 15 sessions

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. Some psychiatric studies indicate that among distin-
guished artists the rates of manic depression and major
depression are ten to thirteen times as prevalent as in

the population at large.

(A) the rates of manic depression and major depres-
sion are ten to thirteen times as prevalent as in
(B) the rates of manic depression and major depres-
sion are ten to thirteen times more prevalent
than in
(C) the rates of manic depression and major depres-
sion are ten to thirteen times more prevalent
when compared to
(D) manic depression and major depression are ten to
thirteen times as prevalent when compared to
(E) manic depression and major depression are ten
to thirteen times more prevalent than in
[Reveal] Spoiler: OA

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Ajit

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Re: Some psychiatric studies indicate [#permalink]

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New post 22 Dec 2010, 19:38
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This post received
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ajit257 wrote:
. Some psychiatric studies indicate that among distin-
guished artists the rates of manic depression and major
depression are ten to thirteen times as prevalent as in

the population at large.

(A) the rates of manic depression and major depres-
sion are ten to thirteen times as prevalent as in
(B) the rates of manic depression and major depres-
sion are ten to thirteen times more prevalent
than in
(C) the rates of manic depression and major depres-
sion are ten to thirteen times more prevalent
when compared to
(D) manic depression and major depression are ten to
thirteen times as prevalent when compared to
(E) manic depression and major depression are ten
to thirteen times more prevalent than in


Hi!

Scanning the choices, we see our first big split right at the start - the most common place for splits. Here we have a 3-2 split between ABC and DE.

A, B and C all refer to "the rates of manic depression and major depression", whereas D and E simply refer to the depressions themselves. Is it proper to say that a rate is "more prevalent" than another rate? No, that makes no sense. A rate can be greater than another rate, or a phenomenon can be more prevalent than another phenomenon. Accordingly, we eliminate A, B and C.

Scanning D and E, we see different idiomatic phrases at the end (another very common place for splits). D has "as prevalent when..." - we know that "as" should followed by another "as", so D is out. A quick check of E reveals "more prevalent than", right on the money.

Choose E!
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New post 22 Dec 2010, 21:33
+1 for E
"Rates of manic depression" cannot be "prevalent". So A, B and C are out.
In option D, "as prevalent when compared to" is not idiomatic. (E) remains
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Re: Some psychiatric studies indicate   [#permalink] 22 Dec 2010, 21:33
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