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In an experiment, two-year-old boys and their fathers made

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In an experiment, two-year-old boys and their fathers made [#permalink]  05 Feb 2008, 04:20
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75% (02:42) correct 25% (02:09) wrong based on 4 sessions
In an experiment, two-year-old boys and their fathers made pie dough together using rolling pins and other utensils. Each father-son pair used a rolling pin that was distinctively different from those used by the other father-son pairs, and each father repeated the phrase “rolling pin” each time his son used it. But when the children were asked to identify all of the rolling pins among a group of kitchen utensils that included several rolling pins, each child picked only the one that he had used.

Which one of the following inferences is most supported by the information above?

(A) The children did not grasp the function of rolling pin.
(B) No two children understood the name “rolling pin” to apply to the same object.
(C) The children understood that all rolling pins have the same general shape.
(D) Each child was able to identify correctly only the utensils that he had used.
(E) The children were not able to distinguish the rolling pins they used from other rolling pins

Can anybody explain pls.?
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Neelabh Mahesh

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Re: CR: Experiment [#permalink]  05 Feb 2008, 05:20
Expert's post
D

In an experiment, two-year-old boys and their fathers made pie dough together using rolling pins and other utensils. Each father-son pair used a rolling pin that was distinctively different from those used by the other father-son pairs, and each father repeated the phrase “rolling pin” each time his son used it. But when the children were asked to identify all of the rolling pins among a group of kitchen utensils that included several rolling pins, each child picked only the one that he had used.

for each child "rolling pin" is an unique thing. They do not generalize their experience.

Which one of the following inferences is most supported by the information above?

(A) The children did not grasp the function of rolling pin. - "false"
(B) No two children understood the name “rolling pin” to apply to the same object. - the answer for "must true" question but not for inference.
(C) The children understood that all rolling pins have the same general shape. - vice-versa
(D) Each child was able to identify correctly only the utensils that he had used. - the best.
(E) The children were not able to distinguish the rolling pins they used from other rolling pins. - "false"
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Re: CR: Experiment [#permalink]  05 Feb 2008, 05:48
walker wrote:
D

In an experiment, two-year-old boys and their fathers made pie dough together using rolling pins and other utensils. Each father-son pair used a rolling pin that was distinctively different from those used by the other father-son pairs, and each father repeated the phrase “rolling pin” each time his son used it. But when the children were asked to identify all of the rolling pins among a group of kitchen utensils that included several rolling pins, each child picked only the one that he had used.

for each child "rolling pin" is an unique thing. They do not generalize their experience.

Which one of the following inferences is most supported by the information above?

(A) The children did not grasp the function of rolling pin. - "false"
(B) No two children understood the name “rolling pin” to apply to the same object. - the answer for "must true" question but not for inference.
(C) The children understood that all rolling pins have the same general shape. - vice-versa
(D) Each child was able to identify correctly only the utensils that he had used. - the best.
(E) The children were not able to distinguish the rolling pins they used from other rolling pins. - "false"

I too opted for D. But its not the correct answer.
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Neelabh Mahesh

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Re: CR: Experiment [#permalink]  05 Feb 2008, 05:54
Expert's post
only B remains.... But what is wrong with D?
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Re: CR: Experiment [#permalink]  05 Feb 2008, 06:27
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Expert's post
I've just refreshed my theoretical knowledge about "inference" question and found that I was fundamentally wrong:

"In fact, the key to answering an inference question is to pick the choice that must be true without bringing in anything from outside of the passage. If a choice needs any assumptions in order to work, then that choice is wrong"

Now, It is obviously that in D we have a problem with word "utensils". We have to assume that the results with rolling pins can be generalize to utensils....easy....
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Re: CR: Experiment [#permalink]  05 Feb 2008, 12:35
B.
This is not an arguement because it doesn't have a conclusion. It only states a set of fact. So this is a Must be true question. We have to base our reasoning only on the facts stated in the premises.
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Re: CR: Experiment [#permalink]  05 Feb 2008, 12:44
walker wrote:
I've just refreshed my theoretical knowledge about "inference" question and found that I was fundamentally wrong:

"In fact, the key to answering an inference question is to pick the choice that must be true without bringing in anything from outside of the passage. If a choice needs any assumptions in order to work, then that choice is wrong"

Now, It is obviously that in D we have a problem with word "utensils". We have to assume that the results with rolling pins can be generalize to utensils....easy....

+1 walker,,good explanation.

I was umming and aaargh in between B and D, went with B in the end but wasn't 100% sure.
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Re: CR: Experiment [#permalink]  06 Feb 2008, 03:37
Father and Son pair made pie dough together using the rolling pins and other utensils. Each father repeated “rolling pin” each time son used it. But children able to identify all the rolling pins they used. If children were knew “rolling pin”, then they would have picked up different one.

(A) The children did not grasp the function of rolling pin. [That may be true. But argument requires what caused the child to identify the “rolling pin” – eliminate it]

(B) No two children understood the name “rolling pin” to apply to the same object. [Hold it]

(C) The children understood that all rolling pins have the same general shape.[Not specified anywhere in the argument – eliminate it]

(D) Each child was able to identify correctly only the utensils that he had used.[This is too extreme – nothing specified in the argument that makes it clear that child identifies only the utensils he had used – eliminate it]

(E) The children were not able to distinguish the rolling pins they used from other rolling pins[This weakens the argument – eliminate it]

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Re: CR: Experiment [#permalink]  06 Feb 2008, 05:05
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read this question in CR bible. it talks about the "shell game" answers where ppl assume rolling pins are utensils and all utensils are rolling pins.
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Re: CR: Experiment [#permalink]  06 Feb 2008, 12:13
Thanks bmwhype2.

I never tried CR Bible book. Can you pass your comments on the book. If need be, I will buy this book.

Thanks
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Re: CR: Experiment [#permalink]  28 Aug 2011, 20:56
Good to see others falling in the trap too ,
at Ist I ticked D and moved on but then utensils ~= rolling pins popped up
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Re: CR: Experiment   [#permalink] 28 Aug 2011, 20:56
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