Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
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.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

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

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 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
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
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
GMATOnDemandStart 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

Tough Kaplan question

Expert replies
by Carlo75 » Fri May 30, 2008 3:06 am
Attention Deficit Disorder (ADD) is a condition characterized by an inability to focus on any topic for a prolonged period of time, and is especially common among children five to ten years old. A recent study has shown that 85 percent of seven-year-old children with ADD watch, on average, more than five hours of television a day. It is therefore very likely that Ed, age seven, has ADD, since he watches roughly six hours of television a day.

The argument above is flawed because it

A – cites as a direct causal mechanism a factor that may only be a partial cause of the condition in question
B – fails to indicate the chances of having ADD among seven-year–old children who watch more than five hours of television a day
C - limits the description of the symptoms of ADD to an inability to focus for a prolonged period of time
D – fails to consider the possibility that Ed may be among the 15 percent of children who do not watch more than five hours of television a day
E – does not allow for other causes of ADD besides television watching



Why the OA is B? PLEASE explanations
Join the discussion
Source: — Critical Reasoning |

Re: Tough Kaplan question

by Stuart@KaplanGMAT » Fri May 30, 2008 8:16 am
Carlo75 wrote:Attention Deficit Disorder (ADD) is a condition characterized by an inability to focus on any topic for a prolonged period of time, and is especially common among children five to ten years old. A recent study has shown that 85 percent of seven-year-old children with ADD watch, on average, more than five hours of television a day. It is therefore very likely that Ed, age seven, has ADD, since he watches roughly six hours of television a day.

The argument above is flawed because it

A – cites as a direct causal mechanism a factor that may only be a partial cause of the condition in question
B – fails to indicate the chances of having ADD among seven-year–old children who watch more than five hours of television a day
C - limits the description of the symptoms of ADD to an inability to focus for a prolonged period of time
D – fails to consider the possibility that Ed may be among the 15 percent of children who do not watch more than five hours of television a day
E – does not allow for other causes of ADD besides television watching



Why the OA is B? PLEASE explanations
The argument in the stimulus is analogous to:

Smoking causes cancer.
Shelly has cancer, therefore Shelly must be a smoker.

Causation arguments are very common on the GMAT.

We can abstract the argument as:

X causes Y.

Someone has quality Y, therefore he also has quality X.

There are a number of different flaws in this line of reasoning. On the GMAT, we'll often see one of the following in the correct answer:

1) there are other ways to get quality Y
2) Y often occurs in the absence of X

Answer choice (b) is a variation of (2) on the list: the author fails to consider how many people have condition Y without having precursor X.
Image

Stuart Kovinsky | Kaplan GMAT Faculty | Toronto

Kaplan Exclusive: The Official Test Day Experience | Ready to Take a Free Practice Test? | Kaplan/Beat the GMAT Member Discount
BTG100 for $100 off a full course
Join the discussion

by Carlo75 » Sat May 31, 2008 12:39 am
Now it's clear ... many thanks
Join the discussion

by khanshainur » Tue May 10, 2016 4:52 am
i feel it's B
Join the discussion