to the top

Setup and Rule Diagrams

deana
LSAT Novice
 
Posts: 4
Joined: Thu Apr 12, 2012 7:33 pm
Points: 0

I am completely lost on the set up of this game. Not sure what to use as a base etc...
I set the bottom line up as RSSTTYYY but I literally missed every question.
Adam Tyson
PowerScore Staff
PowerScore Staff
 
Posts: 2162
Joined: Thu Apr 14, 2011 5:01 pm
Points: 1,978

Deana, as I look at this game, what stands out to me are the numerical rules - 1 learns R, two learn S, etc. When I see numerical rules like that, I tend to think of setting those variable up as my groups, because I will have a fixed number for each group. Try setting it up like this (and I hope this looks right when I post it!) (Okay, it looked all wrong when I tried the first time, so I am doing it again, and setting up my groups vertically instead of horizontally as I normally would, just to make it look right):

R __
S __ __
T __ __
Y __ __ __

After that, your rules are two not-blocks blocks: [L/G], [P/G];
and one conditional rule leading to a block: G --> [HG].

Keep in mind that nobody can be in all four groups.

Try starting there and see what inferences you can draw. I think you'll find that there are some big ones.

Adam M. Tyson
PowerScore LSAT Instructor
Adam M. Tyson
PowerScore LSAT, GRE, ACT and SAT Instructor
Follow me on Twitter at https://twitter.com/LSATadam
deana
LSAT Novice
 
Posts: 4
Joined: Thu Apr 12, 2012 7:33 pm
Points: 0

Oh my gosh! Thanks so much. Just by changing my base I got every problem right in 5 minutes! The vertical setup was so much better than horizontal. How will I know in the future to use that? I know that seems like a ridiculous questions but I am really having trouble quickly knowing these types of set up difference.

Thanks so much!
Dave Killoran
PowerScore Staff
PowerScore Staff
 
Posts: 2616
Joined: Fri Mar 25, 2011 1:18 pm
Points: 2,615

Hi Deana,

There really is no difference between the vertical and horizontal setup; functionally, they are identical. So, use the one that feels best to you :D Just make sure to represent the rules according to the direction of your setup.

Of course, some games--such as a game about a building--makes more sense to be set up vertically, whereas a game about houses on a street would typically make more sense as a horizontal game.

Thanks!
Dave Killoran
PowerScore Test Preparation
Follow me on Twitter at http://twitter.com/DaveKilloran
My LSAT Articles: http://blog.powerscore.com/lsat/author/dave-killoran
cornhusker37
LSAT Apprentice
 
Posts: 5
Joined: Tue Feb 11, 2014 4:38 pm
Points: 0

Hello,

I am having some trouble with the formal logic aspect of this game. As I understand it, the fifth condition would suggest that L :dblline: G and P :dblline: G . If this were true, combined with the sixth condition of G :arrow: H , I would expect to infer that L :dblline: H and P :dblline: H . However, this is clearly not the case. Can you please help me figure out where I am going wrong? Thank you very much!
Dave Killoran
PowerScore Staff
PowerScore Staff
 
Posts: 2616
Joined: Fri Mar 25, 2011 1:18 pm
Points: 2,615

Hi Cornhusker,

You are close, but the connections aren't correctly aligned to produce the inferences you are looking at. To be specific, the arrow that points from G towards H needs to be pointed in the other direction.

What you have here is:


    L :dblline: G :arrow: H
    P :dblline: G :arrow: H

Those produce the following two inferences:


    H :some: L
    H :some: P

If you had the following initial relationships instead:


    H :arrow: G :dblline: L
    H :arrow: G :dblline: P

Then that would yield the inferences you were looking for:


    H :dblline: L
    H :dblline: P

But see how the arrow now points away from H instead of towards it as in the first set of diagrams? That changes the inference dramatically in these two cases.

Please let me know if that helps. Thanks!
Dave Killoran
PowerScore Test Preparation
Follow me on Twitter at http://twitter.com/DaveKilloran
My LSAT Articles: http://blog.powerscore.com/lsat/author/dave-killoran
Angelic414
LSAT Novice
 
Posts: 1
Joined: Wed May 06, 2015 12:06 pm
Points: 0

I am not sure how to approach this game. I simply created a board where the researchers are the players and the languages are where the researchers are placed.

My board looks like this:

___
___ ___ ___
___ ___ ___ ___
R S T Y

PLEASE HELP!
Lucas Moreau
PowerScore Staff
PowerScore Staff
 
Posts: 217
Joined: Thu Dec 13, 2012 4:17 pm
Points: 228

Hello, Angelic,

This game requires a bit of an unconventional setup. Here's what I came up with:

(1) R ___ ___ ___ ___
(2) S ___ ___ ___ ___
(2) T ___ ___ ___ ___
(3) Y ___ ___ ___ ___
.......L....G...P....H
(periods for spacing)

This diagram allows for all four researchers and all four languages to be represented in a gridlike manner that also demonstrates all the rules. The numbers to the left of the languages indicate how many times that language will appear among the four researchers.

L and G have :dblline: between them, as do G and P (I just couldn't get the formatting right to have it like that here :ras: ). You could add G :arrow: H off to the side if you like, or you could put a long arrow that curves underneath P connecting G and H, whichever you prefer. Just make sure it's not a double arrow - what G knows, H knows, but not necessarily the other way around! ;)

From here you should be ready to start making inferences. Good luck! :-D

Hope that helps,
Lucas Moreau
Echx73
LSAT Leader
 
Posts: 38
Joined: Wed Nov 11, 2015 1:39 pm
Points: 8

Hey Team,

I have question! Why do you not suggest just "Templating" the setup out? GH can only go in S or T and altogether there is four languages. Therefore, GH can go in S or T, or both. The question is so so much easier this way then in the book. This leads me to feel like I am missing something, but I get 100% on the question when I template out! Can't wait to here your thoughts!

Eric
Emily Haney-Caron
PowerScore Staff
PowerScore Staff
 
Posts: 578
Joined: Thu Jan 12, 2012 11:26 am
Points: 419

Hi Echx,

Great question. The problem here is that there are a LOT of possibilities. G has to be in either S or T (which means a GH block in one of those two), but the other one could have LP, LH, or GH, which means many combinations: one with GH in both S and T, one with GH in S and LP in T, one with GH in S and LH in T, one with LH in S and GH in T, and one with LP in S and GH in T. It starts to get pretty unwieldy, and so for most people I think it is going to be much faster to work without templates.