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V11-12

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V11-12  [#permalink]

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New post 14 Oct 2018, 13:56
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Researchers propose that creativity is no longer limited by intelligence above a specific IQ level. Some studies show moderate correlations between intelligence and creativity in preschool children with IQ below 120 and a lower correlation in children with IQ above 120. Some other studies (using the WISC-R) found no significant correlations between intelligence and creativity with the exception of a positive relationship within the 131–145 IQ group. Using a different intelligence test (CAT), the correlations between CAT scores and creativity remained insignificant for most groups but were lower than those obtained with the WISC.
Which of the following, if true, most weakens the conjecture, creativity is no longer limited by intelligence above a specific IQ level, presented in the above argument?


A. Comparison of correlations of different dimensions of creativity at a particular IQ level does not show significant differences in the correlation values.
B. Evaluation of the CAT method and WISC method indicates that WISC is a more accurate measurement method than WISC.
C. A study proves that the IQ- creativity correlation is lowest for elementary school students and highest for high school students.
D. Meta-analysis to estimate the mean correlations below and above an IQ of 120 shows a significant difference between the two values.
E. A scatter-plot of the creativity scores and intelligence scores reveals a linear relation.

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Re V11-12  [#permalink]

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New post 14 Oct 2018, 13:57
Official Solution:

Researchers propose that creativity is no longer limited by intelligence above a specific IQ level. Some studies show moderate correlations between intelligence and creativity in preschool children with IQ below 120 and a lower correlation in children with IQ above 120. Some other studies (using the WISC-R) found no significant correlations between intelligence and creativity with the exception of a positive relationship within the 131–145 IQ group. Using a different intelligence test (CAT), the correlations between CAT scores and creativity remained insignificant for most groups but were lower than those obtained with the WISC.
Which of the following, if true, most weakens the conjecture, creativity is no longer limited by intelligence above a specific IQ level, presented in the above argument?


A. Comparison of correlations of different dimensions of creativity at a particular IQ level does not show significant differences in the correlation values.
B. Evaluation of the CAT method and WISC method indicates that WISC is a more accurate measurement method than WISC.
C. A study proves that the IQ- creativity correlation is lowest for elementary school students and highest for high school students.
D. Meta-analysis to estimate the mean correlations below and above an IQ of 120 shows a significant difference between the two values.
E. A scatter-plot of the creativity scores and intelligence scores reveals a linear relation.


The conjecture: creativity is no longer limited by intelligence at or above a specific level of IQ. In other words, there exists a threshold value of intelligence level above which creativity and intelligence are not correlated.

A. This result compares different dimensions of creativity at a particular intelligence level. However the issue in the argument is to compare overall creativity with intelligence at various intelligence levels, not at a particular intelligence level.

B. Different methods of measuring intelligence are out of context.

C. Intelligence-creativity correlation is measured at different age values, not at different intelligence values as required.

D. Significant difference in the two values indicates a change in nature of relation between intelligence and creativity at IQ level of 20. This actually indicates that there exists a threshold value of 120 and hence may strengthen the conjecture.

E.Correct. Linear relation between intelligence and creativity indicates an absence of a threshold value. Therefore this option weakens the conjecture.


Answer: E
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Re: V11-12  [#permalink]

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New post 21 Oct 2018, 05:42
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Bunuel, GMATNinja - I selected answer choice D which seems to be incorrect as per explanation. Conclusion is "creativity is no longer limited by intelligence above a specific IQ level". In that case what choice D means is there is difference between mean of correlation for IQ below and above 120 which means there is a relation between creativity and IQ. More the difference more is the correlation difference in mean. Choice E refers to threshold , not sure what it means and how we derived threshold concept using question stem or statement ? Appreciate your answer.
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Re: V11-12  [#permalink]

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New post 14 Nov 2018, 18:19
Quote:
E. A scatter-plot of the creativity scores and intelligence scores reveals a linear relation.
since the linear relation is not only in high IQ , this shows that YES , creativity is no longer limited by intelligence above a specific IQ level, it strengthen the conclusion .


Quote:
C. A study proves that the IQ- creativity correlation is lowest for elementary school students and highest for high school students.
D. Meta-analysis to estimate the mean correlations below and above an IQ of 120 shows a significant difference between the two values.

Both means that the conclusion that correlation is not limited by a certain IQ level IS not true , It IS limited , so the both weaken the conclusion that says it is not limited .

Please correct me ?
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Re: V11-12 &nbs [#permalink] 14 Nov 2018, 18:19
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