Linear Setup Practice Drill #4

[reop6780]

I was wondering if "dual option" is more powerful setup than "split dual option." My original setup was T/ T/ __ X __ __ (1~6) but the answer key describes it as __ T/V __ X __ __.
It means basically same thing meaning that the TV box can be only located in two different spots. However, regarding the fact that the setup should be effective in showing "what must be true" and "cannot be true," is the dual option better way in this example? - spot 2 must be occupied by either T or V. On the other hand, the split dual option can tell T must be located at either spot 1 or 2.

I want to know which is generally more effective.

[Dave Killoran]

Hi Hyun,

Good question! The reason I prefer the T/V notation is that the -- T/ /T -- representation looks less definite to most people. The idea of the rotation makes it appear as if there is a "hole" of sorts there. On the other hand, the T/V representation can't be ignored because it must always be accounted for when addressing the second space. In addition, because the T/V notation contains both variables, it helps to remind you that both of those variables are involved in a relationship.

Please let me know if that helps. Thanks!

Note for readers of the newest edition of the LGB: this drill now appears on page 87.

[reop6780]

Yes, it did! Thank you Dave.