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

Antipsychotic medicine

Expert replies
by Dean Jones » Wed Oct 26, 2011 6:43 am
Hi Friends,

I am having difficulty in answering the following question.
Please help.

Antoine: The alarming fact is that among children aged 19 years and younger, the number taking antipsychotic medicines soared 73 percent in the last four years. That is greater than the increase in the number of adults taking antipsychotic medicines during the same period.
Lucy: But the use of antipsychotic drugs by adults is considered normal at the current rate of 11 adults per 1,000 taking the drugs. In contrast, the number of children on antipsychotic medication last year was 6.6 per 1,000 children. Lucy’s argument relies on the assumption that ______.

• normal levels of antipsychotic drug use are rarely exceeded.
• the percentage of adults taking antipsychotic medication is always higher than the percentage of children on such
medication.
• the use of antipsychotic medication in children is no different from the use of such medications in adults.
• Antoine is not consciously distorting the statistics he presents.
• a rapid increase in the number of children taking antipsychotic drugs generates more fear of random violence by
adolescents than does knowledge of the absolute number of children on such medications.


OA after some discussion.
Join the discussion
Source: — Critical Reasoning |

by badpoem » Wed Oct 26, 2011 7:49 am
I will try and explain this.

Antoine: The alarming fact is that among children aged 19 years and younger, the number taking antipsychotic medicines soared 73 percent in the last four years. That is greater than the increase in the number of adults taking antipsychotic medicines during the same period.
Lucy: But the use of antipsychotic drugs by adults is considered normal at the current rate of 11 adults per 1,000 taking the drugs. In contrast, the number of children on antipsychotic medication last year was 6.6 per 1,000 children. Lucy’s argument relies on the assumption that ______.

The gist of the argument is that the percentage of children taking anti-psychotic drugs has risen but the current value is still less than that of adults taking anti-psychotic drugs. I was not able to clearly zero in on the assumption but.

• normal levels of antipsychotic drug use are rarely exceeded. --> the issue is not about whether normal levels are exceeded. the issue is about numbers/percentage.

• the percentage of adults taking antipsychotic medication is always higher than the percentage of children on such medication. --> this is a stated premise.

• the use of antipsychotic medication in children is no different from the use of such medications in adults.
--> probable because the use of such medication, if different, will create totally different numbers. Say if the children are abusing and the adults are using the drug for medicinal purposes, then the percentages will not matter. This is an underlying assumption.

• Antoine is not consciously distorting the statistics he presents. --> No question of distortion.

• a rapid increase in the number of children taking antipsychotic drugs generates more fear of random violence by adolescents than does knowledge of the absolute number of children on such medications. --> We are not concerned about the effects.

By POE, clearly (C). Looking forward to some good logic. :)
Join the discussion

by rohangupta83 » Wed Oct 26, 2011 8:19 am
I will have to differ

IMO D

Lucy's conclusion: Well Lucy hasn't drawn a conclusion, just stated facts.

Plus I can't agree with C because 6.6 / 1000 could be high for children or low for children or normal for children, we don't know how it relates to 11/1000 in adults. Nowhere in the passage does it even remotely touch upon this.

Therefore the only valid assumption is that the data given by Antoine is correct. This is also an assumption :)
Join the discussion

by parul9 » Wed Oct 26, 2011 8:41 am
Dean Jones wrote:Hi Friends,

I am having difficulty in answering the following question.
Please help.

Antoine: The alarming fact is that among children aged 19 years and younger, the number taking antipsychotic medicines soared 73 percent in the last four years. That is greater than the increase in the number of adults taking antipsychotic medicines during the same period.
Lucy: But the use of antipsychotic drugs by adults is considered normal at the current rate of 11 adults per 1,000 taking the drugs. In contrast, the number of children on antipsychotic medication last year was 6.6 per 1,000 children. Lucy’s argument relies on the assumption that ______.

• normal levels of antipsychotic drug use are rarely exceeded.
• the percentage of adults taking antipsychotic medication is always higher than the percentage of children on such
medication.
• the use of antipsychotic medication in children is no different from the use of such medications in adults.
• Antoine is not consciously distorting the statistics he presents.
• a rapid increase in the number of children taking antipsychotic drugs generates more fear of random violence by
adolescents than does knowledge of the absolute number of children on such medications.


OA after some discussion.
I also think it's C.

My reasoning:

• normal levels of antipsychotic drug use are rarely exceeded. -- Nothing in Lucy's statement indicates that. Her statements are mere stats. No conclusion has been drawn. Even the tone is very neutral (barring the "But" at the start)

• the percentage of adults taking antipsychotic medication is always higher than the percentage of children on such
medication. --- Again, nothing in the statement idicates this.

• the use of antipsychotic medication in children is no different from the use of such medications in adults. --- Lucy first states the data about adult usage. Then continues talking about children, indicating that for them the avg is lower than adults. This direct comparison shows that she is seeing at the same level the usage of these drugs for both the sets. This is an assumption she makes.

• Antoine is not consciously distorting the statistics he presents. --- Lucy talks abt the avg usage per 1000 among adults and children, while Antoine talks about percentage increase being more in case of children compared to adults. These two stats have no connection between each other. So, this cannot be taken as an assumption made by Lucy. Also, her statement starts with "But", which shows if anything she is not exactly in agreement with Antoine's statement. So, this wont be the answer.

• a rapid increase in the number of children taking antipsychotic drugs generates more fear of random violence by
adolescents than does knowledge of the absolute number of children on such medications --- Totally off the field this one!
Join the discussion

by vaibhavgupta » Thu Oct 27, 2011 8:19 am
Dean Jones wrote:Hi Friends,

I am having difficulty in answering the following question.
Please help.

Antoine: The alarming fact is that among children aged 19 years and younger, the number taking antipsychotic medicines soared 73 percent in the last four years. That is greater than the increase in the number of adults taking antipsychotic medicines during the same period.
Lucy: But the use of antipsychotic drugs by adults is considered normal at the current rate of 11 adults per 1,000 taking the drugs. In contrast, the number of children on antipsychotic medication last year was 6.6 per 1,000 children. Lucy’s argument relies on the assumption that ______.

• normal levels of antipsychotic drug use are rarely exceeded.
• the percentage of adults taking antipsychotic medication is always higher than the percentage of children on such
medication.
• the use of antipsychotic medication in children is no different from the use of such medications in adults.
• Antoine is not consciously distorting the statistics he presents.
• a rapid increase in the number of children taking antipsychotic drugs generates more fear of random violence by
adolescents than does knowledge of the absolute number of children on such medications.


OA after some discussion.
IMO B
whts OA?
Join the discussion

by vinayaerostar » Thu Oct 27, 2011 10:02 am
IMO it should be B.
Join the discussion

by GmatKiss » Thu Oct 27, 2011 12:57 pm
IMO: C
Join the discussion

by Dean Jones » Fri Oct 28, 2011 1:13 pm
OA is C
Join the discussion