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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
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C.

BDE are out due to unidiomatic.

between A and C:
A is wordy because of with clause and 'their'.

I don't regard distinguish between .. and.. and distinguish ... from... as a test point of GMAT. their differences are debatable and too subtle.
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
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BDE are eliminated.

A has their ambiguous ...

C for clear and brevity.
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
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In his research paper, Dr. Frosh, medical director of the Payne Whitney Clinic, distinguishes mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis.

(A) mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis
(B)mood swings , perhaps violent without being grounded in mental disease, and genuine manic-depressive psychosis
(C) between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis
(D) between mood swings, perhaps violent without being grounded in mental disease, from genuine manic-depressive psychosis
(E) genuine manic-depressive psychosis and mood swings, which may be violent without being grounded in mental disease

distinguishes between x and y is correct usage C
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
jyotsnasarabu wrote:
382. In his research paper, Dr. Frosh, medical director of the Payne Whitney Clinic, distinguishes mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis.(A) mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis
(B)mood swings , perhaps violent without being grounded in mental disease, and genuine manic-depressive psychosis
(C) between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis
(D) between mood swings, perhaps violent without being grounded in mental disease, from genuine manic-depressive psychosis
(E) genuine manic-depressive psychosis and mood swings, which may be violent without being grounded in mental disease


Since there is only 2 psychological notions here (mood swings & psychosis) we use the idiom distinguishes from....

distinguish x from y

therefore, only AD are out. Why are B and E wrong?
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
Can any expert explain the difference between

Distinguish X from Y and
Distinguish between X and Y

Furthermore, if we remove unnecessary-"their" from option (A). will the option be correct?

Plz Advise !
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
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We should understand the two potential presentations of the word "distinguishes"

1) ....distinguish between X and Y
2) ....distinguish X from Y

In this prompt, only 2 of the answers fit these patterns: A and C. Eliminate B, D and E

From here, we have a number other rules that we can use (we could also have started with these rules instead of focusing on the word "distinguish"):

1) Unnecessary pronouns: The pronoun "their" in Answer A is unnecessary, since the modifying phrase is clearly discussing "mood swings."

2) 2-part phrases: There are several 2-part phrases that you might see on Test Day. Some are common ("either...or", "neither...nor", "between....and", which others are rarer ("not only...but also", "just as....so." Notice that the usage of the word "between" in some of the answers....this is a clue that we will likely be using the phrase "between...and" in the correct answer.

3) Parallelism: Since the prompt compares two things, we have to present the two "like" things and do so in "parallel format."

All of this points to the correct answer:

Final Answer:

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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
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TGC wrote:
Can any expert explain the difference between

Distinguish X from Y and
Distinguish between X and Y

Furthermore, if we remove unnecessary-"their" from option (A). will the option be correct?

Plz Advise !


Hi,
Distinguish X from Y and Is used for 2 pretty similar items
Distinguish between X and Y Is used for 2 very different items
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
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Malba wrote:
TGC wrote:
Can any expert explain the difference between

Distinguish X from Y and
Distinguish between X and Y

Furthermore, if we remove unnecessary-"their" from option (A). will the option be correct?

Plz Advise !


Hi,
Distinguish X from Y and Is used for 2 pretty similar items
Distinguish between X and Y Is used for 2 very different items



As it was said before the difference between <Distinguish X from Y> and <Distinguish between X and Y> is too subtle.

B, D, E are out because they use neither <Distinguish X from Y> idiom nor <Distinguish between X and Y>.
A - <their> is bad -> out.

Leaves us with C.

If we remove <their> from A, seems to me, it will be correct option.
But if I am not mistaken, <Distinguish between X and Y> has a small priority over <Distinguish X from Y>.
So we will have to choose option C once again.
Correct me, please, if I am wrong.


2TGC and 2 Malba:
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
What is the difference between -
1. distinguishes A from C
2. distinguishes A and C

I was thinking that option 1 is a correct idiomatic phrase.

Please do help clarify my doubt. Thanks.
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
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IDIOMS


To do this right we must know the difference between the following idioms

- TO DISTINGUISH BETWEEN X AND Y

- TO DISTINGUISH X FROM Y



The first idiom - TO DISTINGUISH BETWEEN X AND Y - is used to distinguish between two things that have something in common. For example

- The mane helps me DISTINGUISH BETWEEN an adult lion AND a young one. ----- In this case, both lions - the adult one and the young one - are similar.



On the other hand, the second idiom - TO DISTINGUISH X FROM Y --- is really used to set a contrast between two things that are opposite. For example

- To be pure, you must DISTINGUISH good FROM evil. ------- Two opposites.




In this sentence, it is clear that both conditions (mood swings and manic disorder) have similar characteristics, and are not opposite. Therefore, the idiom we need is TO DISTINGUISH BETWEEN X AND Y.


C is the answer.
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
What is wrong with option D? Distinguish between X from Y is correct usage IMO.
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
gambit07 wrote:
What is wrong with option D? Distinguish between X from Y is correct usage IMO.


Hi gambit07

The correct usages of distinguish are -
1. Distinguish X from Y
2. Distinguish between X and Y

Hence the construction "Distinguish between X from Y" is incorrect.
Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
GMATNinja wrote:
Leonaann wrote:
What is the difference between -
1. distinguishes A from C
2. distinguishes A and C

I was thinking that option 1 is a correct idiomatic phrase.

Please do help clarify my doubt. Thanks.

You're right that the second option is incorrect. Generally speaking, we don't want to worry too much about idioms - there are almost always more concrete decision points to use, and there are far too many idioms to try to memorize every possibility that could show up on the test. (About 25,000, give or take.)

Just know that if you were to see a split between "distinguish A from B" and "distinguish between A and B," either construction would be fine, and you'd want to look for other differences to base your decision on.

I hope that helps!

Quote:
In his research paper, Dr. Frosh, medical director of the Payne Whitney Clinic, distinguishes mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis.

(A) mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis
(B) mood swings , perhaps violent without being grounded in mental disease, and genuine manic-depressive psychosis
(C) between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis
(D) between mood swings, perhaps violent without being grounded in mental disease, from genuine manic-depressive psychosis
(E) genuine manic-depressive psychosis and mood swings, which may be violent without being grounded in mental disease

GMATNinja
Sir,
So, the choice A would be correct if the highlighted part (their) is removed from the choice, right?
Thanks for your cooperation.
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
(A) mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis
their makes this sentence wrong. idiom X from Y is fine

(B) mood swings , perhaps violent without being grounded in mental disease, and genuine manic-depressive psychosis
No between, no from

(C) between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis

(D) between mood swings, perhaps violent without being grounded in mental disease, from genuine manic-depressive psychosis
Both between and from make it redundant and unidiomatic

(E) genuine manic-depressive psychosis and mood swings, which may be violent without being grounded in mental disease
No between, no from
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
hi,
I see everyone is concerned about the idiom, which i got it correct. But i am more concerned with the sentence structure
can anyone please explain me the sentence structure especially the subject and verb? The comma after the clinic seems wrong to me.

any help will be greatly appreciated

Thanks
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
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Lok2209 wrote:
hi,
I see everyone is concerned about the idiom, which i got it correct. But i am more concerned with the sentence structure
can anyone please explain me the sentence structure especially the subject and verb? The comma after the clinic seems wrong to me.

any help will be greatly appreciated

Thanks

Let's take a look at the sentence using the correct answer choice:

Quote:
(C) In his research paper, Dr. Frosh, medical director of the Payne Whitney Clinic, distinguishes between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis.

Notice that "medical director of the Payne Whitney Clinic" is just a comma-separated modifier that gives us more information about Dr. Frosh. The comma after "clinic" is simply the second of two commas that separate the modifier from the noun it modifies ("Dr. Frosh"). If we remove that modifier, we could also remove the two commas:

    "In his research paper, Dr. Frosh distinguishes between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis."

Now it's easier to see that "Dr. Frosh" is the subject and "distinguishes" is the verb.

Notice that "which may be violent without being grounded in mental disease" modifies "mood swings," and the opening modifier ("In his research paper") modifies the entire main clause (telling us where Dr. Frosh distinguishes between...). Removing those modifiers leaves us with the following:

    "Dr. Frosh distinguishes between mood swings and genuine manic-depressive psychosis."

This is the core of the sentence: "Dr. Frosh distinguishes between [X] and [Y]." Everything else is just additional modifying information that, while essential to the meaning of the sentence, can be removed without impacting the core structure of the sentence.

I hope that helps!
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Re: In his research paper, Dr. Frosh, medical director of the Payne Whitne [#permalink]
GMATNinja egmat Why is A wrong, considering it has no idiom issues. Only has one extra word 'their'.
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