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# *New* In order to find out the effect of computer gaming on

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MBA Section Director
Joined: 19 Mar 2012
Posts: 4834
Location: India
GMAT 1: 760 Q50 V42
GPA: 3.8
WE: Marketing (Non-Profit and Government)
*New* In order to find out the effect of computer gaming on [#permalink]

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26 Dec 2015, 10:53
Expert's post
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Difficulty:

95% (hard)

Question Stats:

30% (00:56) correct 70% (01:13) wrong based on 212 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?
[Reveal] Spoiler: OA

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WE: Information Technology (Computer Software)
*New* In order to find out the effect of computer gaming on [#permalink]

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26 Dec 2015, 12:30
It's a.. Sorry missed the except in the question stem...
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Citius, Altius, Fortius

Last edited by TheMechanic on 26 Dec 2015, 22:43, edited 1 time in total.
Director
Joined: 05 Sep 2010
Posts: 829
Re: *New* In order to find out the effect of computer gaming on [#permalink]

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26 Dec 2015, 19:19
1
KUDOS
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
Intern
Joined: 01 Jul 2015
Posts: 37
WE: Investment Banking (Investment Banking)
Re: *New* In order to find out the effect of computer gaming on [#permalink]

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26 Dec 2015, 22:24
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.
Intern
Joined: 08 Jan 2015
Posts: 13
Re: *New* In order to find out the effect of computer gaming on [#permalink]

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26 Dec 2015, 23:23
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?
Intern
Joined: 08 Jan 2015
Posts: 13
Re: *New* In order to find out the effect of computer gaming on [#permalink]

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26 Dec 2015, 23:24
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?
Manager
Joined: 07 Jun 2015
Posts: 90
WE: Design (Aerospace and Defense)
*New* In order to find out the effect of computer gaming on [#permalink]

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27 Dec 2015, 00:48
1
KUDOS
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.
Manager
Joined: 12 Mar 2015
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GPA: 3.9
WE: Information Technology (Computer Software)
Re: *New* In order to find out the effect of computer gaming on [#permalink]

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27 Dec 2015, 23:59
1
KUDOS
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.
Director
Joined: 23 Jan 2013
Posts: 601
Schools: Cambridge'16
*New* In order to find out the effect of computer gaming on [#permalink]

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03 Jan 2017, 01:58
1
KUDOS
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
Intern
Joined: 10 Aug 2009
Posts: 22
Re: *New* In order to find out the effect of computer gaming on [#permalink]

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22 Jan 2018, 08:05
I do not understand why A is the right answer.

Thanks
Ravi Mishra
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If the post helps, kudos please.

Intern
Joined: 28 Sep 2016
Posts: 16
Re: *New* In order to find out the effect of computer gaming on [#permalink]

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23 Jan 2018, 05:16
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

Why A is the right Answer although E seems to be irrelevant.

Regards,
Re: *New* In order to find out the effect of computer gaming on   [#permalink] 23 Jan 2018, 05:16
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