Find all School-related info fast with the new School-Specific MBA Forum

It is currently 23 Sep 2014, 06:41

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Half of the subjects in an experiment the experimental group

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
User avatar
Joined: 31 Aug 2011
Posts: 209
Followers: 2

Kudos [?]: 62 [0], given: 44

CAT Tests
Half of the subjects in an experiment the experimental group [#permalink] New post 14 Aug 2012, 10:52
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

80% (02:11) correct 20% (01:07) wrong based on 56 sessions
Half of the subjects in an experiment—the experimental group—consumed large quantities of a popular artificial sweetener. Afterward, this group showed lower cognitive abilities than did the other half of the subjects—the control group—who did not consume the sweetener. The detrimental effects were attributed to an amino acid that is one of the sweetener’s principal constituents.
Which of the following, if true, would best support the conclusion that some ingredient of the sweetener was responsible for the experimental results?
(A) Most consumers of the sweetener do not consume as much of it as the experimental group members did.
(B) The amino acid referred to in the conclusion is a component of all proteins, some of which must be consumed for adequate nutrition.
(C) The quantity of the sweetener consumed by individuals in the experimental group is considered safe by federal food regulators.
(D) The two groups of subjects were evenly matched with regard to cognitive abilities prior to the experiment.
(E) A second experiment in which subjects consumed large quantities of the sweetener lacked a control group of subjects who were not given the sweetener.
[Reveal] Spoiler: OA

_________________

If you found my contribution helpful, please click the +1 Kudos button on the left, I kinda need some =)

Intern
Intern
avatar
Joined: 18 May 2012
Posts: 9
Followers: 0

Kudos [?]: 3 [0], given: 1

Re: Half of the subjects in an experiment—the experimental group [#permalink] New post 14 Aug 2012, 11:10
Its D. This option clearly shows that the cognitive abilities of the two groups evenly matched prior to the experiment. Hence, the detrimental effects post experiment have to be attributed to the sweetner's active ingredients. All other options weakens the conclusion.
Senior Manager
Senior Manager
avatar
Joined: 15 Jun 2010
Posts: 363
Schools: IE'14, ISB'14, Kellogg'15
WE 1: 7 Yrs in Automobile (Commercial Vehicle industry)
Followers: 7

Kudos [?]: 161 [0], given: 50

GMAT Tests User Reviews Badge
Re: Half of the subjects in an experiment—the experimental group [#permalink] New post 14 Aug 2012, 11:36
Answer D. If we negate D the conclusion falls apart.
_________________

Regards
SD
-----------------------------
Press Kudos if you like my post.
Debrief 610-540-580-710(Long Journey): from-600-540-580-710-finally-achieved-in-4th-attempt-142456.html

Re: Half of the subjects in an experiment—the experimental group   [#permalink] 14 Aug 2012, 11:36
    Similar topics Author Replies Last post
Similar
Topics:
10 Experts publish their posts in the topic In a recent study, a group of subjects had their normal dail dentobizz 5 11 Nov 2013, 13:41
1 Half of the subjects in an experiment the experimental group PUNEETSCHDV 2 14 Aug 2012, 22:58
2 The s subjects in an experiment are divided into 4 groups enigma123 1 04 Mar 2012, 10:47
Experts publish their posts in the topic Half of the subjects in an experiment the experimental group ezinis 11 10 Jan 2011, 11:30
In clinical trials of new medicines, half of the subjects WinWinMBA 10 25 May 2005, 08:05
Display posts from previous: Sort by

Half of the subjects in an experiment the experimental group

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.