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# Doctor: Research shows that adolescents who play video games

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17 Feb 2010, 16:55
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This is actually an excellent GMAT trap question. The question is to identify the assumption, not to see if the conclusion can fall apart or not. Classic difference between strengthening the stimulus and understanding the core logic in the stimulus to drive to the conclusion.

The techniques that honeyrai and gmatpill both used are applicable for strengthening the conclusion. Playing more video games causes carpal tunnel syndrome - a regular cause and effect scenario. Negating the cause, or breaking the relationship, or showing that no alternatives exist between the cause and effect are all techniques applicable for either strengthening or weakening questions.

Assumption on the other hand tries to justify the conclusion. A premise is presented that teenagers run a greater risk when they play more video games. The conclusion drawn is that prohibiting sales of video games should fix the problem. What could possibly justify the conclusion? Cigarette smoking is always advertised as injurious to health, yet, some states literally survive on taxes that come from the sales!!!! In similar lines, even if sales of video games are prohibited, rather restricted, it is up to the parents to make sure they don't buy neither do they allow their teenagers to buy those games anymore. Until that is assumed, the conclusion cannot stand on it's own!!!!

True, the answer must be D.
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17 Feb 2010, 17:20
Nice explanation Barney.

However, wouldn't the legislation prevent parents from making purchases anyways, thus making option 4 slightly out of scope?
(I think the example of cigarette is not completely analogous to this one.)
I find option 4 definitely close but still like 3, however 4's the OA and we have to live with it!

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17 Feb 2010, 17:44
Yes, good points there. Btw, I also agree (C) is a legitimate assumption (I originally chose C) but I believe there's a small subtlety in the 3 part reasoning chain that explains why (D) turns out to be the answer instead of (C). See if it makes any sense.

I edited my above response above to include this explanation.

Excerpt:
Quote:
In the 3 part reasoning chain:
1) Sales of video games -> 2) playing video games -> 3) carpel tunnel syndrome

the doctor's claim is that getting rid of #1, you will no longer have #3.
Answer (D) describes the assumption between #1 and #2.
Answer (C) describes the assumption between #2 and #3.

Since the doctor's claim begins further to the left on the reasoning chain (#1), the assumption must include #1. Although (C) seems like a legitimate assumption to me, it is an assumption related to a different part of the reasoning chain (#2 and #3).

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17 Feb 2010, 21:54
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I think that if C had stated something like "sales to minors will completely curb the syndrome" then it would have been a strong candidate. But here C only says that the legislation will help curb the problem. It doesn't say that it'll eradicate the problem. Curbing a problem signifies reducing the problem. Therefore, the doc certainly accepts the fact that there are other ways in which this syndrome can be developed. Hence C isn't an assumption.

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18 Feb 2010, 06:55
gmatpill wrote:
Yes, good points there. Btw, I also agree (C) is a legitimate assumption (I originally chose C) but I believe there's a small subtlety in the 3 part reasoning chain that explains why (D) turns out to be the answer instead of (C). See if it makes any sense.

I edited my above response above to include this explanation.

Excerpt:
Quote:
In the 3 part reasoning chain:
1) Sales of video games -> 2) playing video games -> 3) carpel tunnel syndrome

the doctor's claim is that getting rid of #1, you will no longer have #3.
Answer (D) describes the assumption between #1 and #2.
Answer (C) describes the assumption between #2 and #3.

Since the doctor's claim begins further to the left on the reasoning chain (#1), the assumption must include #1. Although (C) seems like a legitimate assumption to me, it is an assumption related to a different part of the reasoning chain (#2 and #3).

Yeah, your explanation makes it slightly more convincing
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19 Feb 2010, 02:49
vscid wrote:
Doctor: Research shows that adolescents who play video games on a regular basis are three times as likely to develop carpal tunnel syndrome as are adolescents who do not play video games. Federal legislation that prohibits the sale of video games to minors would help curb this painful wrist condition among adolescents.

The doctor’s conclusion depends on which of the following assumptions?

1]The majority of federal legislators would vote for a bill that prohibits the sale of video games to minors.---> out of scope
2]Not all adolescents who play video games on a regular basis suffer from carpal tunnel syndrome. ---> those who play are likely to develop. So plearly no
3]Playing video games is the only way an adolescent can develop carpal tunnel syndrome. --> conclusion clearly says help not complete prevention
4]Most parents would refuse to purchase video games for their adolescent children. -->adolescents will ultimately play video game and that will not help to curb carpeal tunnel. So this is the answer.
5]The regular playing of video games by adolescents does not produce such beneficial effects as better hand-eye coordination and improved reaction time. --> out of scope

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30 Mar 2010, 02:45
wow good question.

D choice is eliminates the alternate cause of the effect

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06 Apr 2010, 05:15
D [or 4]

for some reason I was stuck at B also. Need to read gmatpill's explanation again ....

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03 Dec 2010, 13:10
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goalsnr wrote:
Doctor: Research shows that adolescents who play video games on a regular basis are three times as likely to develop carpal tunnel syndrome as are adolescents who do not play video games. Federal legislation that prohibits the sale of video games to minors would help curb this painful wrist condition among adolescents.

The doctor’s conclusion depends on which of the following assumptions?

(A) The majority of federal legislators would vote for a bill that prohibits the sale of video games to minors.
-->Though this is possible the conclusion is stating what WOULD happen if sales to minors were prohibited. We don't need to know whether or not the bill passes.
(B) Not all adolescents who play video games on a regular basis suffer from carpal tunnel syndrome.
-->The conclusion does not depend on this statement. If not all adolescents who play videos on a regular basis don't get CTS then the legislation that prohibits the sale of video games doesn't matter.
(C) Playing video games is the only way an adolescent can develop carpal tunnel syndrome.
-->If playing video games is the ONLY way an adolescent can develop CTS then the law would not just "help curb" but would ELMINATE CTS for good.
(D) Most parents would refuse to purchase video games for their adolescent children.
-->If minors can't buy games they will rely on non-minors to purchase it for them. If most parents refuse to purchase video games then CTS will be curbed among adolescents. CORRECT
(E) The regular playing of video games by adolescents does not produce such beneficial effects as better hand-eye coordination and improved reaction time.
-->This statement has nothing to do with our conclusion.

Conclusion: Federal legislation that prohibits the sale of video games to minors would help curb this painful wrist condition among adolescents.
Assumption: No one else buys the game for the minors
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03 Dec 2010, 16:55
goalsnr wrote:
Doctor: Research shows that adolescents who play video games on a regular basis are three times as likely to develop carpal tunnel syndrome as are adolescents who do not play video games. Federal legislation that prohibits the sale of video games to minors would help curb this painful wrist condition among adolescents.

The doctor’s conclusion depends on which of the following assumptions?

(A) The majority of federal legislators would vote for a bill that prohibits the sale of video games to minors.
(B) Not all adolescents who play video games on a regular basis suffer from carpal tunnel syndrome.
(C) Playing video games is the only way an adolescent can develop carpal tunnel syndrome.
(D) Most parents would refuse to purchase video games for their adolescent children.
(E) The regular playing of video games by adolescents does not produce such beneficial effects as better hand-eye coordination and improved reaction time.

The conclusion that federal legislation prohibiting the sale of video games to minor would curb painful wrist condition among adolescents can only be true if their parents do not continue to buy these games for their kids. The games are prohibited to be sold to children, but not to adults who can buy it for them.

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03 Dec 2010, 23:45
hi guys had a doubt in this question
the author says that federal legislation would be helpful in curbing the problem,so one of his assumptions is that the legislation might be passed,thatis even the federal legislators would agree with his opinion on video games,so why cant (A) be a plausible option

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03 Dec 2010, 23:54
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fair bet, but if you look at the conclusion its " Federal legislation that prohibits the sale of video games to minors would help curb this painful wrist condition among adolescents."

the author is not concerned about whether the law will be passed, but will the law once passed help the reduction of the crap that ALL IT GUYS ARE PRONE TO......

So now if the parents or somebody help the guys to get games, there is no point in law, so he safely assumes that noone help the game freaks
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04 Dec 2010, 00:02
i believe that B is the correct Ans.
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04 Dec 2010, 10:43
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D.

Negating the assumption should make the conclusion in valid.
The conclusion is that by legally prohibiting minors to buy video games will help in curbing this condition.
Option d states that minors can get video games by ther parents getting it for them.

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04 Dec 2010, 18:32
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Expert's post
hi guys had a doubt in this question
the author says that federal legislation would be helpful in curbing the problem,so one of his assumptions is that the legislation might be passed,thatis even the federal legislators would agree with his opinion on video games,so why cant (A) be a plausible option

Further to mailnavin1's point, an assumption supports the conclusion.
The conclusion here is "A law that prohibits sale of video games to minors would help curb this condition" i.e. a law would help.

If you want to negate this conclusion, you will say, "a law will not help." You will not say, "Such a law cannot be passed."

So this conclusion does not depend on whether the law will be passed. The author just says that if the law is passed, it will help. He assumes that a law will work because adults will not buy the games for minors.
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04 Dec 2010, 21:56
@mailnavin,@karishma,thanks a lot for the great expln

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17 Jan 2011, 23:36
A and B don't even relate to the question too well. That pretty much narrows the choices to C, D and E.
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12 Jun 2011, 09:29
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Doctor: Research shows that adolescents who play video games on a regular basis are three times as likely to develop carpal tunnel syndrome as are adolescents who do not play video games. Federal legislation that prohibits the sale of video games to minors would help curb this painful wrist condition among adolescents.

The doctor’s conclusion depends on which of the following assumptions?
The majority of federal legislators would vote for a bill that prohibits the sale of video games to minors.
Not all adolescents who play video games on a regular basis suffer from carpal tunnel syndrome.
Playing video games is the only way an adolescent can develop carpal tunnel syndrome.
Most parents would refuse to purchase video games for their adolescent children.
The regular playing of video games by adolescents does not produce such beneficial effects as better hand-eye coordination and improved reaction time.

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12 Jun 2011, 10:51
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sushbis wrote:
Doctor: Research shows that adolescents who play video games on a regular basis are three times as likely to develop carpal tunnel syndrome as are adolescents who do not play video games. Federal legislation that prohibits the sale of video games to minors would help curb this painful wrist condition among adolescents.

The doctor’s conclusion depends on which of the following assumptions?
The majority of federal legislators would vote for a bill that prohibits the sale of video games to minors.
Not all adolescents who play video games on a regular basis suffer from carpal tunnel syndrome.
Playing video games is the only way an adolescent can develop carpal tunnel syndrome.
Most parents would refuse to purchase video games for their adolescent children.
The regular playing of video games by adolescents does not produce such beneficial effects as better hand-eye coordination and improved reaction time.

Even though the prohibition is on force ,it will not have any effect if parents buy the game and give it to their children.Because the prohibition is only for minors.Hence D is the assumption,which has been taken by the doctor.
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12 Jun 2011, 18:43
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Explanation for this has been provided in MGMAT forum. However I am not very convinced with the arguments given there regarding D being the preferable choice over C. I think this question definitely needs editing. Choice D should be reworded something on the lines :

The law will prevent most parents from buying video games for their adolescent children.

Even though the current choice actually means the same, explicitly mentioning the relation between the law and sale of video games will make the choice clearer.

Crick

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Re: Confused!   [#permalink] 12 Jun 2011, 18:43

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