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In order to find out the effect of computer gaming on 'cognitive flexi

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In order to find out the effect of computer gaming on 'cognitive flexi [#permalink]

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New post 26 Dec 2015, 11:53
1
10
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A
B
C
D
E

Difficulty:

  95% (hard)

Question Stats:

28% (01:00) correct 72% (01:17) wrong based on 293 sessions

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In order to find out the effect of computer gaming on 'cognitive flexibility' – ability to switch between tasks – researchers recruited two groups of volunteers. One group played a real-time strategy game, which requires frequent decision making and high level of organising skills, while the other a life-simulation game, which does not require much memory or many tactics. The two groups played their respective games for at least forty hours over six weeks.

Each of the following may be important to know before arriving at a conclusion regarding the influence of playing computer games on cognitive flexibility except:


A. Whether the volunteers already knew the rules of the games before the experiment?

B. How many participants in each group have been playing strategy games before the experiment?

C. How was the performance of the participants on cognitive flexibility tests before the experiment?

D. How was the food habits and sleeping habits of the participants during the experiment?

E. What was the ratio of male to female in each group?

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Re: In order to find out the effect of computer gaming on 'cognitive flexi [#permalink]

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New post Updated on: 26 Dec 2015, 23:43
It's a.. Sorry missed the except in the question stem...
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Originally posted by TheMechanic on 26 Dec 2015, 13:30.
Last edited by TheMechanic on 26 Dec 2015, 23:43, edited 1 time in total.
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Re: In order to find out the effect of computer gaming on 'cognitive flexi [#permalink]

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New post 26 Dec 2015, 20:19
1
A seems best: Whether the volunteers already knew the rules of the games before the experiment?

the question is EXCEPT so other than A all choices seem to affect the CONCLUSION
reasoning :

B. How many participants in each group have been playing strategy games before the experiment?--->this will affect the conclusion as if "playing strategy games" really AFFECT "cognitive skills" then unequal number of people who used to play such games BEFORE the experiment will affect the outcome

C. How was the performance of the participants on cognitive flexibility tests before the experiment?------>will DEFINITELY affect as DATUM of experiment will be AFFECTED

D. How was the food habits and sleeping habits of the participants during the experiment?---->will ACT AS an EXTERNAL factor AFFECTING the outcome

E. What was the ratio of male to female in each group? ------->will ACT as an "OTHER FACTOR" AFFECTING the outcome

why A is NOT AFFECTING?

A say: Whether the volunteers already knew the rules of the games before the experiment?------->THIS will AFFECT the ABILTY of people to play the GAME ;i.e , on their respective PERFORMANCE BUT NOT on the conclusion of the ARGUMENT
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Re: In order to find out the effect of computer gaming on 'cognitive flexi [#permalink]

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New post 26 Dec 2015, 23:24
Choice A seems the best option. Doesn't make a difference if the participants knew the rules before hand or no. The experiment is about how they adapt DURING the game.
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Re: In order to find out the effect of computer gaming on 'cognitive flexi [#permalink]

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New post 27 Dec 2015, 00:23
If the participants already know the rules of the game then wont there be a change in strategy of how they play? how does it matters to know about the ratio of male female?
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Re: In order to find out the effect of computer gaming on 'cognitive flexi [#permalink]

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New post 27 Dec 2015, 00:24
If the participants already know the rules of the game then wont there be a change in strategy of how they play? how does it matters to know about the ratio of male female?
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Re: In order to find out the effect of computer gaming on 'cognitive flexi [#permalink]

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New post 27 Dec 2015, 01:48
1
E seems ok. We are talking about volunteers. It can be male or female. Knowing the ratio of male to female participants is irrelevant.


Cognition means ability to understand.if somebody know the rules then they need not exercise cognitive ability.So knowing whether they know the rules or not prior to the test is required. in that case A is relevant.
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Re: In order to find out the effect of computer gaming on 'cognitive flexi [#permalink]

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New post 28 Dec 2015, 00:59
1
souvik101990 wrote:
In order to find out the effect of computer gaming on 'cognitive flexibility' – ability to switch between tasks – researchers recruited two groups of volunteers. One group played a real-time strategy game, which requires frequent decision making and high level of organising skills, while the other a life-simulation game, which does not require much memory or many tactics. The two groups played their respective games for at least forty hours over six weeks.

Each of the following may be important to know before arriving at a conclusion regarding the influence of playing computer games on cognitive flexibility except:

A. Whether the volunteers already knew the rules of the games before the experiment?
B. How many participants in each group have been playing strategy games before the experiment?
C. How was the performance of the participants on cognitive flexibility tests before the experiment?
D. How was the food habits and sleeping habits of the participants during the experiment?
E. What was the ratio of male to female in each group?



IMO: E

Knowing/Not Knowing the rules of the games prior to experiment will definitely affect 'cognitive flexibility'. The group might actually spend more time to figure out the rule before the next step of action.
In E However ratio of male/female will not matter.
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Re: In order to find out the effect of computer gaming on 'cognitive flexi [#permalink]

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New post 03 Jan 2017, 02:58
1
Difficulty of the question is that it does not have specific conclusion.
So, we should choose option which relates to good experiment practice.

In good experiment both groups should be equal in all participants' characteristics. BCDE are such characteristics

I also took E but A it is
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Re: In order to find out the effect of computer gaming on 'cognitive flexi [#permalink]

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New post 22 Jan 2018, 09:05
I do not understand why A is the right answer.

RonPurewal, could you please provide your thoughts on this question.

Thanks
Ravi Mishra
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Re: In order to find out the effect of computer gaming on 'cognitive flexi [#permalink]

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New post 23 Jan 2018, 06:16
souvik101990 wrote:
In order to find out the effect of computer gaming on 'cognitive flexibility' – ability to switch between tasks – researchers recruited two groups of volunteers. One group played a real-time strategy game, which requires frequent decision making and high level of organising skills, while the other a life-simulation game, which does not require much memory or many tactics. The two groups played their respective games for at least forty hours over six weeks.

Each of the following may be important to know before arriving at a conclusion regarding the influence of playing computer games on cognitive flexibility except:

A. Whether the volunteers already knew the rules of the games before the experiment?
B. How many participants in each group have been playing strategy games before the experiment?
C. How was the performance of the participants on cognitive flexibility tests before the experiment?
D. How was the food habits and sleeping habits of the participants during the experiment?
E. What was the ratio of male to female in each group?



GMATNinja

Can you please help in answering this question.
Why A is the right Answer although E seems to be irrelevant.

Regards,
Adi
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Re: In order to find out the effect of computer gaming on 'cognitive flexi [#permalink]

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New post 20 May 2018, 09:44
GMATNinja can you please help me? why A is correct here and why not E?
Re: In order to find out the effect of computer gaming on 'cognitive flexi   [#permalink] 20 May 2018, 09:44
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In order to find out the effect of computer gaming on 'cognitive flexi

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