• NEW! FREE Beat The GMAT Quizzes
    NEW! FREE Beat The GMAT Quizzes
    NEW! FREE Beat The GMAT Quizzes
    Hundreds of Questions Highly Detailed Reporting Expert Explanations TAKE A FREE GMAT QUIZ
  • 7 CATs FREE!
    If you earn 100 Forum Points

    Engage in the Beat The GMAT forums to earn
    100 points for $49 worth of Veritas practice GMATs FREE

    Veritas Prep
    VERITAS PRACTICE GMAT EXAMS
    Earn 10 Points Per Post
    Earn 10 Points Per Thanks
    Earn 10 Points Per Upvote
    REDEEM NOW

2016 OG CR 30

This topic has 2 expert replies and 4 member replies

2016 OG CR 30

Post
People who do regular volunteer work tend to live longer, on average, than people who do not. It has been found that “doing good,” a category that certainly includes volunteer work, releases endorphins, the brain’s natural opiates, which induce in people a feeling of well-being. Clearly, there is a connection: Regular releases of endorphins must in some way help to extend people's lives.Which of the following, if true, most seriously undermines the force of the evidence given as support for the hypothesis that endorphins promote longevity?
A People who do regular volunteer work are only somewhat more likely than others to characterize the work they do for a living as “doing good.”
B Although extremely high levels of endorphins could be harmful to health, such levels are never reached as a result of the natural release of endorphins.
C There are many people who have done some volunteer work but who do not do such work regularly.
D People tend not to become involved in regular volunteer work unless they are healthy and energetic to begin with.
E Releases of endorphins are responsible for the sense of well-being experienced by many long-distance runners while running.

The OA is D. Can someone explain it?

  • +1 Upvote Post
  • Quote
  • Flag

GMAT/MBA Expert

Top Reply
Post
Mo2men wrote:
Crystal W wrote:
People who do regular volunteer work tend to live longer, on average, than people who do not. It has been found that “doing good,” a category that certainly includes volunteer work, releases endorphins, the brain’s natural opiates, which induce in people a feeling of well-being. Clearly, there is a connection: Regular releases of endorphins must in some way help to extend people's lives.Which of the following, if true, most seriously undermines the force of the evidence given as support for the hypothesis that endorphins promote longevity?
A People who do regular volunteer work are only somewhat more likely than others to characterize the work they do for a living as “doing good.”
B Although extremely high levels of endorphins could be harmful to health, such levels are never reached as a result of the natural release of endorphins.
C There are many people who have done some volunteer work but who do not do such work regularly.
D People tend not to become involved in regular volunteer work unless they are healthy and energetic to begin with.
E Releases of endorphins are responsible for the sense of well-being experienced by many long-distance runners while running.

The OA is D. Can someone explain it?
Dear GMATGuru

Premise:
Volunteering........> long life
Volunteering........> Endorphins

The conclusion states causal relationship: Endorphins........> longevity.

I do not understand how the OA weaken the argument? How does it weaken the causal relationship here? Does it offer another alternative cause? or reverse the relation? if the latter, does 'healthy' mean long live make them do volunteering?

Thanks in advance
Why do people who do regular volunteer work live longer?
The argument concludes that ENDORPHINS are the cause.
One way to weaken this conclusion is to suggest an ALTERNATE CAUSE.

D: People tend not to become involved in regular volunteer work unless they are healthy and energetic to begin with.
In other words, people who do regular volunteer work are HEALTHIER AND MORE ENERGETIC than those who don't.
Implication:
The volunteers' longevity is caused NOT by endorphins but by BETTER HEALTH AND GREATER ENERGY, weakening the conclusion that endorphins promote longevity.

The correct answer is D.

_________________
Mitch Hunt
Private Tutor for the GMAT and GRE
GMATGuruNY@gmail.com

If you find one of my posts helpful, please take a moment to click on the "UPVOTE" icon.

Available for tutoring in NYC and long-distance.
For more information, please email me at GMATGuruNY@gmail.com.
Student Review #1
Student Review #2
Student Review #3

  • +1 Upvote Post
  • Quote
  • Flag
Free GMAT Practice Test How can you improve your test score if you don't know your baseline score? Take a free online practice exam. Get started on achieving your dream score today! Sign up now.
Master | Next Rank: 500 Posts
Joined
13 Mar 2015
Posted:
410 messages
Followed by:
7 members
Upvotes:
120
GMAT Score:
770
Post
Crystal W wrote:
People who do regular volunteer work tend to live longer, on average, than people who do not. It has been found that “doing good,” a category that certainly includes volunteer work, releases endorphins, the brain’s natural opiates, which induce in people a feeling of well-being. Clearly, there is a connection: Regular releases of endorphins must in some way help to extend people's lives.Which of the following, if true, most seriously undermines the force of the evidence given as support for the hypothesis that endorphins promote longevity?
A People who do regular volunteer work are only somewhat more likely than others to characterize the work they do for a living as “doing good.”
B Although extremely high levels of endorphins could be harmful to health, such levels are never reached as a result of the natural release of endorphins.
C There are many people who have done some volunteer work but who do not do such work regularly.
D People tend not to become involved in regular volunteer work unless they are healthy and energetic to begin with.
E Releases of endorphins are responsible for the sense of well-being experienced by many long-distance runners while running.

The OA is D. Can someone explain it?
People who do volunteering tend to live longer because they feel happy because of the endorphin release.
Conclusion:Volunteering work extend's people's lives.

We need to weaken this conclusion.

1. What if something else increases the lives?
2. What if the persons are already healthy?
In these cases, we cannot conclude that endorphins released as a result of volunteering increase lives

Of the given option, option D resonates with point 2

Correct Option: D

  • +1 Upvote Post
  • Quote
  • Flag
Master | Next Rank: 500 Posts Default Avatar
Joined
02 Mar 2016
Posted:
154 messages
Upvotes:
2
Post
OptimusPrep wrote:
Crystal W wrote:
People who do regular volunteer work tend to live longer, on average, than people who do not. It has been found that “doing good,” a category that certainly includes volunteer work, releases endorphins, the brain’s natural opiates, which induce in people a feeling of well-being. Clearly, there is a connection: Regular releases of endorphins must in some way help to extend people's lives.Which of the following, if true, most seriously undermines the force of the evidence given as support for the hypothesis that endorphins promote longevity?
A People who do regular volunteer work are only somewhat more likely than others to characterize the work they do for a living as “doing good.”
B Although extremely high levels of endorphins could be harmful to health, such levels are never reached as a result of the natural release of endorphins.
C There are many people who have done some volunteer work but who do not do such work regularly.
D People tend not to become involved in regular volunteer work unless they are healthy and energetic to begin with.
E Releases of endorphins are responsible for the sense of well-being experienced by many long-distance runners while running.

The OA is D. Can someone explain it?
People who do volunteering tend to live longer because they feel happy because of the endorphin release.
Conclusion:Volunteering work extend's people's lives.

We need to weaken this conclusion.

1. What if something else increases the lives?
2. What if the persons are already healthy?
In these cases, we cannot conclude that endorphins released as a result of volunteering increase lives

Of the given option, option D resonates with point 2

Correct Option: D
Thank you, but I am a little confused because the question is "undermines the force of the evidence", not the "conclusion". Can you explain more?

  • +1 Upvote Post
  • Quote
  • Flag
Senior | Next Rank: 100 Posts Default Avatar
Joined
11 Aug 2012
Posted:
31 messages
Post
Crystal W wrote:
OptimusPrep wrote:
Crystal W wrote:
People who do regular volunteer work tend to live longer, on average, than people who do not. It has been found that “doing good,” a category that certainly includes volunteer work, releases endorphins, the brain’s natural opiates, which induce in people a feeling of well-being. Clearly, there is a connection: Regular releases of endorphins must in some way help to extend people's lives.Which of the following, if true, most seriously undermines the force of the evidence given as support for the hypothesis that endorphins promote longevity?
A People who do regular volunteer work are only somewhat more likely than others to characterize the work they do for a living as “doing good.”
B Although extremely high levels of endorphins could be harmful to health, such levels are never reached as a result of the natural release of endorphins.
C There are many people who have done some volunteer work but who do not do such work regularly.
D People tend not to become involved in regular volunteer work unless they are healthy and energetic to begin with.
E Releases of endorphins are responsible for the sense of well-being experienced by many long-distance runners while running.

The OA is D. Can someone explain it?
People who do volunteering tend to live longer because they feel happy because of the endorphin release.
Conclusion:Volunteering work extend's people's lives.

We need to weaken this conclusion.

1. What if something else increases the lives?
2. What if the persons are already healthy?
In these cases, we cannot conclude that endorphins released as a result of volunteering increase lives

Of the given option, option D resonates with point 2

Correct Option: D
Thank you, but I am a little confused because the question is "undermines the force of the evidence", not the "conclusion". Can you explain more?
Hello,

I also thought this. Because of the wording of the question, it seemed to be asking to undermine the force of the evidence and not the conclusion. I though this was odd. I interpreted this to mean undermine sentence 2. Between D and E, I picked E. Could someone please help explain the logic in this question? Thanks

  • +1 Upvote Post
  • Quote
  • Flag

GMAT/MBA Expert

Legendary Member
Joined
14 Jan 2015
Posted:
2667 messages
Followed by:
122 members
Upvotes:
1153
GMAT Score:
770
Post
Poisson wrote:
Crystal W wrote:
OptimusPrep wrote:
Crystal W wrote:
People who do regular volunteer work tend to live longer, on average, than people who do not. It has been found that “doing good,” a category that certainly includes volunteer work, releases endorphins, the brain’s natural opiates, which induce in people a feeling of well-being. Clearly, there is a connection: Regular releases of endorphins must in some way help to extend people's lives.Which of the following, if true, most seriously undermines the force of the evidence given as support for the hypothesis that endorphins promote longevity?
A People who do regular volunteer work are only somewhat more likely than others to characterize the work they do for a living as “doing good.”
B Although extremely high levels of endorphins could be harmful to health, such levels are never reached as a result of the natural release of endorphins.
C There are many people who have done some volunteer work but who do not do such work regularly.
D People tend not to become involved in regular volunteer work unless they are healthy and energetic to begin with.
E Releases of endorphins are responsible for the sense of well-being experienced by many long-distance runners while running.

The OA is D. Can someone explain it?
People who do volunteering tend to live longer because they feel happy because of the endorphin release.
Conclusion:Volunteering work extend's people's lives.

We need to weaken this conclusion.

1. What if something else increases the lives?
2. What if the persons are already healthy?
In these cases, we cannot conclude that endorphins released as a result of volunteering increase lives

Of the given option, option D resonates with point 2

Correct Option: D
Thank you, but I am a little confused because the question is "undermines the force of the evidence", not the "conclusion". Can you explain more?
Hello,

I also thought this. Because of the wording of the question, it seemed to be asking to undermine the force of the evidence and not the conclusion. I though this was odd. I interpreted this to mean undermine sentence 2. Between D and E, I picked E. Could someone please help explain the logic in this question? Thanks
To undermine the force of the evidence is to undermine the logic of how the evidence leads to the conclusion, not to undermine (or refute) the evidence itself. This is typically what we're doing in weaken questions.

_________________
Veritas Prep | GMAT Instructor

Veritas Prep Reviews
Save $100 off any live Veritas Prep GMAT Course

  • +1 Upvote Post
  • Quote
  • Flag
Enroll in a Veritas Prep GMAT class completely for FREE. Wondering if a GMAT course is right for you? Attend the first class session of an actual GMAT course, either in-person or live online, and see for yourself why so many students choose to work with Veritas Prep. Find a class now!
Legendary Member Default Avatar
Joined
25 Sep 2015
Posted:
687 messages
Followed by:
5 members
Upvotes:
14
Post
Crystal W wrote:
People who do regular volunteer work tend to live longer, on average, than people who do not. It has been found that “doing good,” a category that certainly includes volunteer work, releases endorphins, the brain’s natural opiates, which induce in people a feeling of well-being. Clearly, there is a connection: Regular releases of endorphins must in some way help to extend people's lives.Which of the following, if true, most seriously undermines the force of the evidence given as support for the hypothesis that endorphins promote longevity?
A People who do regular volunteer work are only somewhat more likely than others to characterize the work they do for a living as “doing good.”
B Although extremely high levels of endorphins could be harmful to health, such levels are never reached as a result of the natural release of endorphins.
C There are many people who have done some volunteer work but who do not do such work regularly.
D People tend not to become involved in regular volunteer work unless they are healthy and energetic to begin with.
E Releases of endorphins are responsible for the sense of well-being experienced by many long-distance runners while running.

The OA is D. Can someone explain it?
Dear GMATGuru

Premise:
Volunteering........> long life
Volunteering........> Endorphins

The conclusion states causal relationship: Endorphins........> longevity.

I do not understand how the OA weaken the argument? How does it weaken the causal relationship here? Does it offer another alternative cause? or reverse the relation? if the latter, does 'healthy' mean long live make them do volunteering?

Thanks in advance

  • +1 Upvote Post
  • Quote
  • Flag
  • EMPOWERgmat Slider
    1 Hour Free
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    EMPOWERgmat Slider
  • Veritas Prep
    Free Veritas GMAT Class
    Experience Lesson 1 Live Free

    Available with Beat the GMAT members only code

    MORE DETAILS
    Veritas Prep
  • Economist Test Prep
    Free Trial & Practice Exam
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    Economist Test Prep
  • e-gmat Exclusive Offer
    Get 300+ Practice Questions
    25 Video lessons and 6 Webinars for FREE

    Available with Beat the GMAT members only code

    MORE DETAILS
    e-gmat Exclusive Offer
  • Kaplan Test Prep
    Free Practice Test & Review
    How would you score if you took the GMAT

    Available with Beat the GMAT members only code

    MORE DETAILS
    Kaplan Test Prep
  • Target Test Prep
    5-Day Free Trial
    5-day free, full-access trial TTP Quant

    Available with Beat the GMAT members only code

    MORE DETAILS
    Target Test Prep
  • The Princeton Review
    FREE GMAT Exam
    Know how you'd score today for $0

    Available with Beat the GMAT members only code

    MORE DETAILS
    The Princeton Review
  • PrepScholar GMAT
    5 Day FREE Trial
    Study Smarter, Not Harder

    Available with Beat the GMAT members only code

    MORE DETAILS
    PrepScholar GMAT
  • Varsity Tutors
    Award-winning private GMAT tutoring
    Register now and save up to $200

    Available with Beat the GMAT members only code

    MORE DETAILS
    Varsity Tutors
  • Magoosh
    Magoosh
    Study with Magoosh GMAT prep

    Available with Beat the GMAT members only code

    MORE DETAILS
    Magoosh

Top First Responders*

1 Brent@GMATPrepNow 43 first replies
2 Ian Stewart 35 first replies
3 Jay@ManhattanReview 32 first replies
4 GMATGuruNY 27 first replies
5 Scott@TargetTestPrep 13 first replies
* Only counts replies to topics started in last 30 days
See More Top Beat The GMAT Members

Most Active Experts

1 image description Scott@TargetTestPrep

Target Test Prep

189 posts
2 image description Max@Math Revolution

Math Revolution

90 posts
3 image description Brent@GMATPrepNow

GMAT Prep Now Teacher

75 posts
4 image description GMATGuruNY

The Princeton Review Teacher

44 posts
5 image description Ian Stewart

GMATiX Teacher

42 posts
See More Top Beat The GMAT Experts