Its good to practice LSAT if you are targetting 700+ questions. The passages are a bit complex in LSAT and the closeness of the answer choices is much more than that found in GMAT. If you are targetting less than 700, then practicing LSAT would demoralize you a bit.

nileshdalvi has it right in many ways. The LSAT questions can be of a different style - formal logic is one of these differences - and LSAT questions can also be more difficult, yes even to the point of being demoralizing.

However, I think that LSAT questions can be used effectively as challenging practice questions. Here are a few posts I have written on the subject.

https://www.beatthegmat.com/using-the-ls ... 66548.html
https://www.beatthegmat.com/lsat-to-stud ... 69915.html
https://www.beatthegmat.com/lsat-to-stud ... 71361.html

You can also search on BTG for "LSAT problem example" (in quotes) and you will find 6 LSAT problems that I have posted as examples of which kinds of problems to study and which to avoid.

Hope it helps!

David@VeritasPrep wrote:nileshdalvi has it right in many ways. The LSAT questions can be of a different style - formal logic is one of these differences - and LSAT questions can also be more difficult, yes even to the point of being demoralizing.

However, I think that LSAT questions can be used effectively as challenging practice questions. Here are a few posts I have written on the subject.

https://www.beatthegmat.com/using-the-ls ... 66548.html
https://www.beatthegmat.com/lsat-to-stud ... 69915.html
https://www.beatthegmat.com/lsat-to-stud ... 71361.html

You can also search on BTG for "LSAT problem example" (in quotes) and you will find 6 LSAT problems that I have posted as examples of which kinds of problems to study and which to avoid.

Hope it helps!

thank you David

One question more. This question is not for me.

if a person will to have a perfect score on CR on GMAT and have enough time and want to study all LSAT questions, including the question from 17 to 25 in each LSAT test, he or she will have to study formal logic rules in LSAT CRITICAL REASONING BIBLE. Is that thing right?

we have to study formal logic before doing all questions of LSAT. Is this thing right?

Studying all LSAT questions and going through Powerscore and worrying about formal logic WILL NOT help you get a perfect score on the GMAT critical reasoning - it will help you on the LSAT since that is what you would be studying.

Critical Reasoning on the GMAT is intentionally designed to be limited in scope. Maybe half of what is on the LSAT is on the GMAT. Many LSAT questions can be fun and even instructive, but others can be frustrating and might even cause you to over think things on test day. Truly the GMAT Critical Reasoning is about having a mindset that allows you to think critically about each question and also about having good techniques for each question type.

I also teach the LSAT and when I teach Critical Reasoning on the GMAT I put away at least half of what I know and do not even use that when responding to CR posts on BTG.

Now if a person just has lots of time and thinks that this is fun - I am sure it will not hurt much to learn everything about LSAT logical reasoning, but that time could be spent on sentence correction, reading comp and quant!