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.

★★★★★5.0563 reviews
Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep
NEWSWEEK READERS’ CHOICE AWARDS 2026

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

GMATLiveTeach Starts Oct 17
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Chris Peckover, 100th-Percentile GMAT Scorer

Oct 17 · Chris Peckover
Sat · 11:00 AM to 2:00 PM ET
Oct 20 · Chris Peckover
Tue, Thu · 8:00 to 10:00 PM ET
Oct 25 · Josh Braslow
Sun · 1:00 to 4:00 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemand 5 seats left Start anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

165+ EA score guarantee
$05-day trial no automatic billing
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 Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget 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.

Insomnia

Expert replies
by psychomath » Wed Oct 13, 2010 7:20 am
A recent study showed that, typically, people with caffeine addictions are more likely to suffer from insomnia than those who consume little or no caffeine. Based on this study, a researcher asserted that sufferers of insomnia are therefore more likely to develop caffeine addiction.

A. Some people who consume caffeine do not suffer from insomnia.
B. People who suffer from insomnia usually find that trying caffeine makes their symptoms worse and rarely continue its use.
C. Many insomniacs consume coffee and energy drinks, both of which contain high levels of caffeine.
D. People with high levels of stress are also more likely to develop insomnia than the average person
E. Caffeine addictions are easier to overcome, since the symptoms of caffeine withdrawal are relatively minor.

I had doubt between B and D. The answer is clearly B, But isnt it true that in weaken questions like "IF X causes Y", the answer choice is the one which says Z also causes Y?
Like in this question the choice D specifies another reason that causes insomnia so y is that answer wrong....

TIA[/spoiler]
Join the discussion
Source: — Critical Reasoning |

by uwhusky » Wed Oct 13, 2010 9:19 am
Can you transcribe the question correctly first?
Yep.
Join the discussion

by psychomath » Thu Oct 14, 2010 6:44 am
Apologies for incompletely leaving the Question. The question is which of the statements weaken the conclusion
Join the discussion