Uniqueness Test

[sophiaT]

I saw a solution in the LR Bible referencing something called the Uniqueness Test. Several days before, I saw a solution on the form referencing this test. I cannot find the complete explanation of this test within the Bible. Is there a page number that can be provided?

[KelseyWoods]

Hi Sophia!

The Uniqueness Rule of Answer Choices is described right at the beginning of the section titled "The Answer Choices" in the Logical Reasoning Bible (pg. 109 in the latest edition, if you have a different edition, look it up in the Glossary/Index and it will give you a page number).

One of our instructors also described it well on another thread: https://forum.powerscore.com/lsat/viewtopic.php?t=15633

Great question! The best existing explanation for the Uniqueness Rule of Answer Choices™ is in chapter 3 of the Logical Reasoning Bible (page 107). There are two important ideas intrinsic to this rule:

1. The correct answer will satisfy the logical quality of the question stem, and the four incorrect answers will not. In addition to the three examples provided in the Bible, you could extrapolate this principle to any situation you encounter on the LSAT:
   • Correct answer: Resolve the paradox, Incorrect answers: Do not resolve the paradox, either no effect or make it worse
   • Correct answer: Statement with which the author would likely agree, Incorrect answers: No evidence author would agree, or evidence author would disagree
   • Correct answer: Cannot be true, Incorrect answers: Could be true, or possibly must be true
2. If two answers are identical to each other, these two answers must be incorrect. These two incorrect answers could be literally identical, or they could have an identical logical quality. Either way they are incorrect.

You are very likely already implementing the principles illustrated in this rule! The Uniqueness Rule of Answer Choices is simply a conceptual framework with which we can better understand the mechanics of answers, both correct and incorrect, on the LSAT. Please follow up with further questions. I hope this helps!

Hope this helps!

Best,
Kelsey