BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
Vote for Target Test Prep, Newsweek Readers’ Choice Awards 2026
NEWSWEEK READERS’ CHOICE 2026

BIG NEWS! Target Test Prep has been nominated, and they’d love your vote!

TTP has worked incredibly hard to build the best test prep experience possible, and winning Newsweek’s 2026 Readers’ Choice Award for Best Test Prep would mean a lot to them. If TTP has helped you, they’d be incredibly grateful for your vote. You can vote once each day through September 9.

Vote for TTP
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

OG 11 - CR Q15

Expert replies
by Auzbee » Fri Dec 21, 2007 1:35 am
Hi All,
Here's the question from OG11/CR15. I do not agree with the provided explanation.

A researcher studying drug addicts found that, on average, they tend to manipulate other people a great deal more than nonaddicts do. The researcher concluded that eeople who frequently manipulate other people are likely to become addicts.

Which of the following, if true, most seriously weakens the researcher's conclusion?
a. After becoming addicted to drugs, drug addicts learn to manipulate other people as a way of obtaining drugs.
b. when they are imprisoned, drug addicts often use their ability to manipulate other people to obtain better living conditions.
c. Some nonaddicts manipulate other peoople more than some addicts do.
d. People who are likely to become addicts exhibit unusual behavior patterns other than frequent manipulation of other people.
e. The addicts that the researcher studied were often unsuccessful in obtaining what they wanted when they manipulated other people.

I will post the answer in a day or two after reading your explanations. Please do not provide the same rationale/wording as given in OG11.
Join the discussion
Source: — Critical Reasoning |


by Joey Live » Sun Jan 06, 2008 12:03 am
"a" > indicates that addiction cause manipulation.
Join the discussion

by sankruth » Sun Jan 06, 2008 2:37 am
The argument shows a causal relationship i.e. A causes B. or A precedes B

In his case If you are manipulative, you become a drug addict.

Here is a strategy I work with for these type of questions. In most questions (not all) where there is a causal relationship, the correct answer is the one that shows that the relationship is wrong or the other way around. i.e B causes A.

Hope this helps!
Join the discussion

by Rashmi1804 » Tue Apr 21, 2009 3:31 am
A is the answer.agreed!!
but can anybody explain WHY NOT D ???

Does sentence D mean " they exhibit other behaviour also inaddition to frequqnt manipulation ??"

Or " they exhibit behaviour except frequent manipulation ??"

Please help!!
Join the discussion

by kris77 » Fri May 13, 2016 11:06 pm
A is the most suitable option in this case.
Join the discussion