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Over the last 20 years, psychologists have studied the effect

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Over the last 20 years, psychologists have studied the effect  [#permalink]

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New post 15 May 2017, 05:43
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Over the last 20 years, psychologists have studied the effect of television viewing on the subsequent levels of violent behavior by young adults. The researchers studied children between the ages of 10 and 15 and found that those children who viewed an average of 6 hours or more of television daily were over four times as likely to be arrested for violent crimes when they were young adults than those young adults who as children watched less than 2 hours of television daily. Therefore, researchers concluded that television viewing causes increased levels of violent activity in young adults.

Which of the following would indicate a flaw in the researcher’s conclusion?

(A) The researchers did not establish that those who watched more than six hours of television were watching shows that featured violence.
(B) The researchers did not establish that those who watched more violent shows were even more likely to be arrested than those who watched less violent shows.
(C) The researchers did not establish that some other reason, such as parental style, was not a factor for both the differences in television viewing and later arrest levels between the two groups.
(D) The researchers did not carry out their study long enough to determine if television viewing influences arrest records for those over the age of 40.
(E) The researchers did not establish that those who were arrested for violent crimes had actually caused serious injury to other people.

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Over the last 20 years, psychologists have studied the effect  [#permalink]

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New post 15 May 2017, 06:28
rohan2345 wrote:
Over the last 20 years, psychologists have studied the effect of television viewing on the subsequent levels of violent behavior by young adults. The researchers studied children between the ages of 10 and 15 and found that those children who viewed an average of 6 hours or more of television daily were over four times as likely to be arrested for violent crimes when they were young adults than those young adults who as children watched less than 2 hours of television daily. Therefore, researchers concluded that television viewing causes increased levels of violent activity in young adults.

Which of the following would indicate a flaw in the researcher’s conclusion?

(A) The researchers did not establish that those who watched more than six hours of television were watching shows that featured violence.
(B) The researchers did not establish that those who watched more violent shows were even more likely to be arrested than those who watched less violent shows.
(C) The researchers did not establish that some other reason, such as parental style, was not a factor for both the differences in television viewing and later arrest levels between the two groups.
(D) The researchers did not carry out their study long enough to determine if television viewing influences arrest records for those over the age of 40.
(E) The researchers did not establish that those who were arrested for violent crimes had actually caused serious injury to other people.


The answer should be C since choice C indicates that the result of the study could be reversed if there are other factors effected the children and made them more violent, i.e. parental style.
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Re: Over the last 20 years, psychologists have studied the effect  [#permalink]

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New post 15 May 2017, 07:15
C is the answer it is telling tv didnt cause but other factor(parental) caused both effects (tv viewing and violent crime).

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Re: Over the last 20 years, psychologists have studied the effect  [#permalink]

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New post 06 Oct 2017, 07:00
I Picked (C)

(A) ASSUMPTION - This is clearly an assumption made by the researchers ( Here the researchers are assuming that children watch violent programs everyday ). WE CAN'T CALL THIS A FLAW IN THE ARGUMENT.
(B) WRONG - Researchers have established this detail in the passage.
(C) PERFECT - The researchers conclude that television viewing is sole cause of increased levels of violent activity. But what if parents encouraged their children to watch violent television programs on a on going basis. Then who do we blame here ?? TELEVISION VIEWING OR PARENTS ?? THIS IS THE FLAW !!
(D) IRRELEVANT ( We are not concerned with people over the age of 40, only the 10-15 age category ).
(E) IRRELEVANT ( Whether violent crimes caused involved serious injury or no doesn't matter here. What matters is whether television viewing is the sole cause of increased levels of violent activity. )
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Over the last 20 years, psychologists have studied the effect  [#permalink]

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New post 01 Jan 2018, 19:21
this question comes from Nova, or gmat prep by Jeff Kolby. This question once appears in a LSAT source. The sources are unreliable. Is this question good? Ones should request reply from experts.
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Over the last 20 years, psychologists have studied the effect &nbs [#permalink] 01 Jan 2018, 19:21
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