In an experiment, two different types of recorded music were : GMAT Critical Reasoning (CR)
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# In an experiment, two different types of recorded music were

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Director
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In an experiment, two different types of recorded music were [#permalink]

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05 Jul 2008, 14:34
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In an experiment, two different types of recorded music were played for neonates in adjacent nurseries in a hospital. In nursery A, classical music was played; in nursery B, rock music was played. After two weeks, it was found that the babies in nursery A cried less, suffered fewer minor ailments, and gained more weight than did the babies in nursery B.

Which of the following additional experimental data would support the hypothesis that classical music is beneficial to the development of newborn?

A. The neonates in a nursery where no music was played fared better than those in nursery B.

B. Nursery A contained 15 percent more premature babies than nursery B.

C. The newborns in nursery A cried less, suffered fewer minor ailments, and gained more weight than did newborns in a nursery with no music.

D. The music played in nursery A was louder than that played in nursery B.

E. The ratio of nurses to newborns in nursery B was 1 to 4; in nursery A, it was 1 to 6.

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05 Jul 2008, 14:54
A. The neonates in a nursery where no music was played fared better than those in nursery B.

This actually weakens saying that no music is good for health

B. Nursery A contained 15 percent more premature babies than nursery

Keep it. CM was so good that it made premature babies healthier in 3 aspects.

C. The newborns in nursery A cried less, suffered fewer minor ailments, and gained more weight than did newborns in a nursery with no music.

Comparison with No music new borns. It is saying that it helps. Keep it

D. The music played in nursery A was louder than that played in nursery B.

To me out of scope.

E. The ratio of nurses to newborns in nursery B was 1 to 4; in nursery A, it was 1 to 6.

Out of scope

Between B and C to me its B because CM helped premature babies, who have some deficiencies healthier in 3 different aspects.

What is the OA?
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06 Jul 2008, 02:57
hanumayamma wrote:
In an experiment, two different types of recorded music were played for neonates in adjacent nurseries in a hospital. In nursery A, classical music was played; in nursery B, rock music was played. After two weeks, it was found that the babies in nursery A cried less, suffered fewer minor ailments, and gained more weight than did the babies in nursery B.

Which of the following additional experimental data would support the hypothesis that classical music is beneficial to the development of newborn?

A. The neonates in a nursery where no music was played fared better than those in nursery B.
=> Not addressing the issue in hand.
B. Nursery A contained 15 percent more premature babies than nursery B.
=>Could be a contender but note the way the CR starts --
music were played for neonates

ne·o·nate
n. A newborn infant, especially one less than four weeks old.
So premature baby are Out Of Scope.

C. The newborns in nursery A cried less, suffered fewer minor ailments, and gained more weight than did newborns in a nursery with no music.
Hold IT
D. The music played in nursery A was louder than that played in nursery B.
The impact of intensity not discussed.
E. The ratio of nurses to newborns in nursery B was 1 to 4; in nursery A, it was 1 to 6.
The effect nursing care not discussed.

C
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06 Jul 2008, 04:14
It should be C.

E was close, but as nursing isnt discussed in the pasage it become Out of scope.
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06 Jul 2008, 06:08
I understand that neonate is A newborn infant, especially one less than four weeks old. A neonate can still be premature. A premature baby is one that is born before the full 9 months. I feel that it is safe to assume that premature babies have some sort of deficiencies, with out picking the exact deficiencies

This is a strengthen Q and it can add evidence/premises or establish assumptions.

Looking at the Q again

Which of the following additional experimental data would support the hypothesis that classical music is beneficial to the development of newborn?

asks for data that supports the hypothesis that CM is beneficial to development of new borns.

B is stronger to me compared to C

(1) B compares neonates who heard music vs neonates who heard music

(2) In B neonates with deficiencies are doing well after hearing music

In C

(1) Comparison is between neonates who heard music and who did not hear music at all

Can we compare neonates who heard music and who did not hear any music and deduce that music was beneficial to one group?

What is the OA?
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06 Jul 2008, 08:23
icandy wrote:
asks for data that supports the hypothesis that CM is beneficial to development of new borns.

I think you've bolded the wrong word here. I look at the conclusion as follows:

"CM is beneficial to the development of newborns."

The experimental data could support two findings:

1) CM is beneficial to the development of newborns;
2) Rock music is detrimental to the development of newborns.

How to decide between the two conclusions? Use a control group of newborns- a group that has no music played to them. If they develop worse than the Classical music group, this supports the finding that Classical music was indeed beneficial. C.
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06 Jul 2008, 08:37
Ian,

Thanks for your explanation. I missed underlining the beneficial part along with development

You said

The experimental data could support two findings:

1) CM is beneficial to the development of newborns; ( I agree )
2) Rock music is detrimental to the development of newborns. ( My thought is RM did not make any difference to group B. B says CM was played to group A and A has premature babies. )

We don't know what RM did to group B, but we know that CM has the power to make premature babies healthy in 3 different aspects. If I am wrong, which I am apparently as the OA is C, I am wondering assuming premature babies possibly will have some deficiencies is the reason for my wrong answer.

Thanks to the OP for a good Q +1
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06 Jul 2008, 09:32
I was a bit quick with neonates !!! My apologies.

Icandy,
But B remains out of scope , as the stage of babies of babies is not being discussed. I mean
point here is not to prove if CM is have +ve effect on Premature baby it is a proof that it
has better effect on Normal babies.
The group having more Premature Babies doesn't support conclusion.

Conclusion : CM -->(beneficial) New Born.

The option C is more just for the conclusion , as it eliminates a major factor ( No Music ) from
breaking the conclusion.
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06 Jul 2008, 11:57
IMO C.
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07 Jul 2008, 06:30
I get A.

We are looking for the answer that tells us that the results of the experiment are due to the music and nothing else.

A. The neonates in a nursery where no music was played fared better than those in nursery B.
This indicates that music affects the babies. Correct
B. Nursery A contained 15 percent more premature babies than nursery B.
This provides another reason for the results.
C. The newborns in nursery A cried less, suffered fewer minor ailments, and gained more weight than did newborns in a nursery with no music.
This is a restatement of given information.
D. The music played in nursery A was louder than that played in nursery B.
This provides another reason for the results. Maybe loudness and not the type in beneficial.
E. The ratio of nurses to newborns in nursery B was 1 to 4; in nursery A, it was 1 to 6.
This provides another outside reason for the results.
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07 Jul 2008, 08:05
Quote:
Which of the following additional experimental data would support the hypothesis that classical music is beneficial to the development of newborn?

B. Nursery A contained 15 percent more premature babies than nursery B.

C. The newborns in nursery A cried less, suffered fewer minor ailments, and gained more weight than did newborns in a nursery with no music. may contain only matured babies

asked for additional experimental data...C provides us with a completely new experiment.bcz the original experiment contains only nurseries A and B..Here in C, we are talking about a completely new experiment which has nursery A and another nursery with no music.

Between B and C ...i choose B
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07 Jul 2008, 08:49
I read too fast and missed the end of C.

C. The newborns in nursery A cried less, suffered fewer minor ailments, and gained more weight than did newborns in a nursery with no music.

After looking at it this is the correct answer. It shows that classical music is beneficial.
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07 Jul 2008, 09:24
hanumayamma wrote:
In an experiment, two different types of recorded music were played for neonates in adjacent nurseries in a hospital. In nursery A, classical music was played; in nursery B, rock music was played. After two weeks, it was found that the babies in nursery A cried less, suffered fewer minor ailments, and gained more weight than did the babies in nursery B.

Which of the following additional experimental data would support the hypothesis that classical music is beneficial to the development of newborn?

A. The neonates in a nursery where no music was played fared better than those in nursery B.

B. Nursery A contained 15 percent more premature babies than nursery B.

C. The newborns in nursery A cried less, suffered fewer minor ailments, and gained more weight than did newborns in a nursery with no music.

D. The music played in nursery A was louder than that played in nursery B.

E. The ratio of nurses to newborns in nursery B was 1 to 4; in nursery A, it was 1 to 6.

We have 2 hyothesis
X- blah blah.....with classical music
Y - blah blah.....rock music
To benchmark these we need a 3rd reference.
C exactly does that by evaluating the scenario with "no music"

C
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07 Jul 2008, 15:35
Thanks All.

Re: CR: Classical Music   [#permalink] 07 Jul 2008, 15:35
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