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Studying for the LSAT / weaken & FLAW Questions-please help~
« on: November 19, 2007, 01:00:10 AM »
 ;)studies have shown that treating certain illnesses with treatment X produces the same beneficial changes in patients' conditions as treating the same illnesses with treatment Y. furthermore, treatmnet X is quicker and less expensive than treatment Y. thus, in treating these illnesses, treatment x should be preferred to treatment Y.

which one of the following , if true, would most weaken the argument above?

a unlike treatment Y, treatment x has produced harmful side effects in laboratory animals.

b there are other illnesses for which treatment Y is more effective than treatment X

c until recently, treatment x was more expensive than treatment y

d treatment y is prescribed  more often by physicians than treatment X

e a third treatment, treatment z , is even quicker and less expensive than treatment x.

 ;D letter to the editor:  i have never seen such flawed reasoning and distorted evidence as that which you tried to pass off as a balanced study in the article " speed limits, fatalities, and public policy." the article states that areas with lower speed limits had lower vehicle-related fatality rates than other areas. however, that will not be true for long, since vehicle-related fatality rates are rising in the areas with lower speed limits. so the evidence actually supports the view that speed limits should be increased.

the reasoning in the letter writer's argument is flawed because the argument.

a bases its conclusion on findings from the same article that it is criticizing

b fails to consider the possibility that automobile accidents that occur at high speeds often result in fatalities

c fails to consider the possibility that not everyone wants to drive faster

d fails to consider the possibility that the vehicle related fatality rates in other areas are also rising

e does not present any claims as evidence against the opposing viewpoint.

Studying for the LSAT / LR Questions: Your help needed. Any LR Experts?
« on: November 18, 2007, 01:29:56 AM »
I would appreciate your help.(prep 51, sec1) Thanks.


the supernova event of 1987 is interesting in that there is still no evidence of the neutron star that current theory says should have remained after a supernova of that size. this is in spite of the fact that many of the most sensitive instruments over developed have searched for the tell-tale pulse of radiation that neutron stars emit. thus, current theory is wrong in claiming that supernova of a certain size always produce neutron stars

which one of the following , if true, most strengthens the argument?

a most supernova remnants that astronomers have detected have a neutron star nearby

bsensitive astronomical instruments have detected neutron stars much farther away than the location of the 1987 supernova

c the supernova of 1987 was the first that scientists were able to observe in progress

dseveral important features of the 1987 supernova are correctly predicted by the current theory

e some neutron stars are known to have come into existence by a cause other than a supernova explosion.

15. flaw
the typological theory of species classification, which has few adherents today, distinguishes species soley on the basis of observable physical characteristics, such as plumage of color, adult size, or dental structure. however, there are many so called " sibling species," which are indistinguishable on the basis of their appearance but can not interbreed and thus, according to the mainstream biological theory of species classification , are separate species. since the typological theory does not count sibling species as separate species, it is unacceptable.

the reasoning in the argument is most vulnerable to criticism on the grounds that

a the argument does not evaluate all aspects of the typological theory

b the argument confuses a necessary condition for species distinction with a sufficient condition for species distinction

c the argument , in its attempt to refute one thoeory of species classiification, presupposes the truth of an opposing theory

d the argument takes single fact tha is incompatible with a theory as enough to show that theory to be false

 the argument does not explain why sibling species can not interbreed

Studying for the LSAT / weaken , flaw and inference Q help
« on: November 16, 2007, 09:51:08 PM »
51 sec1 Q8 can someone please enlighten me?
if you could go over each choice, that would be awesome.

We can now dismiss the widely held suspicion that sugar consumption often exacerbate hyperactivity in children with attention deficit disorder. a scientific study of the effects of three common sugars-sucrose, fructose, and glucose-on children who have attention deficit disorder, with experimental groups each receiving a type of sugar in their diets and a control group receiving a sugar subsitute instead of sugar, showed no statistically significant difference between the groups in thinking or behavior.

which one of the following, if true, most weaken the argument above?

a only one of the three types of sugar used in the study was ever widely suspected of exacberating hyperactivity

bthe consumption of suage actually has a claming effect on some children

cthe consumption of some suage subsitutes exacerbates the symptoms of hyperactivity

d the study included some observations of each group in contexts that generally tend to make chilkdren excited and active

e some children believe that they can tell the difference between taste of suage and that of suagr subsistute.


51 sec1 11
 some statisticians believe that the method called extreme value theory(EVT) is a powerful analytical tool. the curves generated by traditional statistical methods to analyze empirical data on human longevity predict that some humans would live beyond 130 years . according to the curves EVT generates, however, the limit on human life spans is probably between 114 and 124 years. to date, no one has lived beyond the upper limits indicated by EVT analysis.

which one of the following can be properly inferred from the statement above?

a EVT is, in  general, a more reliable method for projecting future trends based on past observations than are traditional statistical methods
b EVT fits the datae about the higested observed human life spans more closely than do traditional statistical methods

51 sec1 q10 :-\
Columnist:A recent research report suggests that by exercising vigorously, one significantly lowers one's chances of developing certain cardiorespiratory illnesses. but exercise has this effect, the report concludes, only if the exercise is vigorous. thus,one should not heed older studies purporting to show that nonstrenuous walking yields the same benefits.

the reasonsing in the columnist's argument is most vulnerable to criticism on the grounds that this argument

a fails to consider tha possibility that the risk of developing certain cardio-respiratory illnesses can be reduced by means other than exercise.

bfails to consider that the those who exercise vigorously are at increased risk of physical injury caused by exercise

c overlooks the possibility that vigrous exercvise may prevent life endagering diseases that have little to do with the cardio-respiratory system

d fails to consider the possibility that those who engaged in  vigorous physical exercies are more likely than others to perceive themselves as healthy

e fails to show that a certain conclusion of the recent report is better justified than an opposing conclusion reached in older studies

Studying for the LSAT / LR flaw Q
« on: November 15, 2007, 03:46:17 AM »
can someone please go over prep51 sec1 Q12(flaw)?

thanks a lot

Studying for the LSAT / what not to do on a real exam...any suggestions?
« on: November 15, 2007, 12:39:34 AM »
what not to do on a real exam...any suggestions? thanks

Studying for the LSAT / prep 40ish more difficult than earlier exams?
« on: November 14, 2007, 10:53:41 PM »
prep 40ish more difficult than earlier exams? what do you think?

Studying for the LSAT / prep50 explanations?
« on: November 11, 2007, 01:14:17 AM »
where can i find test explanations for prep#50?
i know there is some website out there..macnichol or something..

Studying for the LSAT / need your words of advice on FLAW Q.
« on: November 04, 2007, 09:53:04 PM »
I need your words of advice.
I have some trouble with flaw questions. Can you offer me some
advice on how to effectively tackle this type of q?

I am lost on this one...
Prep 21(DEC. 1996) sec 3, Q7 about the photograph.

Studying for the LSAT / preptests 1-19
« on: October 15, 2007, 08:59:06 PM »
 preptests 1-19..are they useless? is it worth my time studying those prep tests?

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