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.

Very tough

Expert replies
by gmat620 » Tue Mar 17, 2009 1:44 pm
Some philosophers of science claim that no serious scientific theory can be tested experimentally without taking for granted some other body of scientific beliefs, the operation of the instruments-for we cannot interpret the experimental results without appealing to such beliefs. If this is true, then which of the following conclusions seems most likely?
A) Any particular scientific theory can be consistently retained, even in the face of apparently incompatible evidence, if we are willing to give up certain other scientific beliefs.
B) Experimental evidence is really irrelevant to scientific theorizing.
C) Experimental evidence is more relevant to the testing of scientific theories than to their initial formulation.
D) Experimental evidence is more relevant to the initial formulation of scientific theories than to their testing.
E) The best scientific theories are those which are formulated in such a way as to be subject to conclusive experimental refutation.

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

by rseeker2 » Wed Mar 18, 2009 8:44 am
Is it A ?

The rest do not talk about the center point...
Join the discussion

by Kunal_gmat » Wed Mar 18, 2009 9:48 am
"for we cannot interpret the experimental results without appealing to such beliefs"

(D) says that experimental evidence is more useful for formulating scientific theories than for testing the theories. And the quoted statement above says that results cannot be interpreted without using previous scientific beliefs. Thus experimental evidence + old theories are used to create new theories, not test old theories.

Is (D) the right answer?
Join the discussion

by nervesofsteel » Wed Mar 18, 2009 10:34 am
ImO C

"no serious scientific theory can be tested experimentally without taking for granted some other body of scientific beliefs"

Thus experimental results of other theories are important for testing of new theories..
Join the discussion

by gmat620 » Wed Mar 18, 2009 11:18 am
OA:A.....but couldn't understand
Join the discussion

by S0laris » Wed Mar 18, 2009 12:54 pm
It's A
Btw, are LSAT questions comparable with gmat's ?
we are the champions !
Join the discussion

by gmat620 » Thu Mar 19, 2009 12:49 am
@S0laris

I think LSAT CRs are very tough as compared with GMAT CRs, but i have seen many high scorers recommending these...not sure whether they would help...
Join the discussion