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LSAT and Law School Admissions Blog

August 8, 2016

Find Success within the 4 Corners of the “Must Be True” Stimulus

Find Success within the 4 Corners of the "Must Be True" Stimulus

Often, people studying for the LSAT have trouble figuring out how the test has anything to do with real life, let alone law school or the practice of law.  But the connection is clear with Must Be True questions. It all comes down to the "four corners" rule. The Four Corners Rule In Must Be True questions, you're limited to the information in the stimulus. You can't bring in any outside information. So, the correct answer choice will be either … [Read more...]

Posted by PowerScore Test Prep / Conditional Reasoning, LSAT Prep / Conditional Reasoning Leave a Comment

May 19, 2016

Conditional Reasoning Redux: The Only Cheat Sheet You Need on the LSAT

Conditional Reasoning Redux: The Only Cheat Sheet You Need on the LSAT

First, a disclaimer. You cannot have a cheat sheet when taking the LSAT. Don't even think about it. But, if you follow the advice below, you wouldn't need to. This cheat sheet is for those of you who struggle with the myriad of ways in which the LSAT conveys conditional relationships. We feel your pain! It sucks encountering 20 different ways of saying the same thing. Then again, that's what makes natural language different from coding. A Word … [Read more...]

Posted by PowerScore Test Prep / Conditional Reasoning, LSAT Prep / Conditional Reasoning, LSAT Prep Leave a Comment

May 5, 2016

Beyond “Unless”: Advanced Conditional Reasoning

Beyond "Unless": Advanced Conditional Reasoning

It's fair to say that conditional reasoning is either the bane of your test prep, or a welcome escape from the uncertainty that plagues causal reasoning.  In the first few months of test prep, you will likely see conditional reasoning everywhere: understanding conditional reasoning can easily turn into an obsession, prompting you to diagram whenever you come across any of the indicators of conditionality. The costs of this approach ultimately … [Read more...]

Posted by PowerScore Test Prep / Conditional Reasoning, LSAT Prep / Conditional Reasoning, LSAT Prep 3 Comments

April 30, 2016

Conditional Reasoning on the LSAT: Do You See It Everywhere?

Do You See It Everywhere?

Many students, upon being introduced to the foundational concepts of conditional reasoning and deductive logic, begin to "see" conditionality everywhere. In a sense, it is everywhere - especially in deductive reasoning, which forms the basis for most LSAT questions. You may even find comfort in the rule-driven environment of formal, or deductive, logic. There is nothing wrong with that, per se. But you need to know when you've gone far. To … [Read more...]

Posted by PowerScore Test Prep / Conditional Reasoning, LSAT Prep / Conditional Reasoning, LSAT Prep Leave a Comment

April 2, 2016

Conditional Diagramming Part V: Advantages of the Unless Equation

Conditional Diagramming Part 5

Students often ask if there is an easier way to handle conditional statements containing necessary condition indicators such as “unless,” “except,” “until,” and “without.” The Unless EquationTM This is relatively simple, but it does involve a two-step process:Whatever term is modified by “unless” becomes the necessary condition. The remaining term is negated and becomes the sufficient condition.For example, consider the … [Read more...]

Posted by PowerScore Test Prep / Conditional Reasoning, LSAT Prep / Conditional Reasoning, Diagramming, Logical Reasoning, LSAT Prep Leave a Comment

April 1, 2016

Conditional Diagramming Part IV: Working with “Only”

Conditional Diagramming Part 4

We are continuing our Conditional Diagramming discussion today with the word “only” which is used frequently in LSAT questions. “Only” is a necessary condition indicator, and its usage is often easy to parse. Here’s an example: Only doctors carry malpractice insurance. “Only” modifies “doctors,” and thus the proper diagram is: Carry malpractice insurance → doctor However, in a number of instances, “only” is used in a way that is more … [Read more...]

Posted by Dave Killoran / Conditional Reasoning, LSAT Prep / Conditional Reasoning, Diagramming, Logical Reasoning, LSAT Prep Leave a Comment

March 10, 2016

When Do I Diagram Conditional Reasoning Statements?

When Do I Diagram Conditional Reasoning Statements?

A question that frequently comes up from readers of the LSAT Logical Reasoning Bible is, when should I diagram conditional statements in the LSAT Logical Reasoning section? In the book, I talk about diagramming in a number of different chapters, but most prominently in the chapter on Conditional Reasoning.Conditional Reasoning is a Major Concept While, not surprisingly, I think that every chapter in the LR Bible has high value, the … [Read more...]

Posted by Dave Killoran / Conditional Reasoning, LSAT Prep / Conditional Reasoning, Diagramming, LSAT Prep 1 Comment

February 15, 2016

When Does “Either/Or” Mean “Both” on the LSAT?

When Does "Either/Or" Mean "Both" on the LSAT

Understanding the proper conditional relationship represented by the “either/or” conjunction in LSAT questions is crucial in both Logic Games and Logical Reasoning questions. While there are some solid rules you must follow, ultimately you should take into account the context in which the phrase is used. Learning the Rules Typically, a rule such as “either A or B must be selected” is inclusive. It allows for the possibility of selecting both A … [Read more...]

Posted by PowerScore Test Prep / Conditional Reasoning, LSAT Prep / Conditional Reasoning, LSAT Prep 7 Comments

February 4, 2016

Conditional Diagramming Part II: “And” in the Necessary Condition

Conditional Diagramming Part 2

In my last post, I discussed conditional statements with "or" in the sufficient condition. Diagrams with multiple necessary conditions can, depending on the circumstances, then be used to create multiple single diagrams. Let's look at an example.If the rule reads: "If Operations is offered, then Accounting or Sales is also offered," then the diagram is solely:          A O → or          S Because the necessary condition is just at least … [Read more...]

Posted by Dave Killoran / Conditional Reasoning, LSAT Prep / Conditional Reasoning, Diagramming, Logical Reasoning, LSAT Prep 1 Comment

January 30, 2016

Conditional Diagramming Part I: “Or” in the Sufficient Condition

Conditional Diagramming Part 1

Diagrams with multiple sufficient conditions can, depending on the circumstances, then be used to create multiple single diagrams. Let's look at an example.Consider a rule that reads: "If Operations or Sales is offered, then Accounting is also offered." Operations = O Sales = S Accounting = A As a single conditional statement, there are two parts to the sufficient condition (O and S), that are joined by an "or" operator. That sufficient … [Read more...]

Posted by Dave Killoran / Conditional Reasoning, LSAT Prep / Conditional Reasoning, Diagramming, Logical Reasoning, LSAT Prep Leave a Comment

January 23, 2016

Conditional Diagramming Part III: “If But Only If” in LR Questions

Conditional Diagramming Part 3

An interesting topic came up on our forum a short time back, about the meaning of “If but only if,” and the proper way to diagram a rule that includes this phrase.  Students who are familiar with the LSAT have probably encountered a rule that says “if and only if,” but the use of the term “but” is a clever trick by the test makers. “If but only if” doesn’t look quite the same as “If and only if,” and to many students, the two phrases appear to … [Read more...]

Posted by PowerScore Test Prep / Conditional Reasoning, LSAT Prep / Conditional Reasoning, Diagramming, Logical Reasoning, LSAT Prep Leave a Comment

January 18, 2016

How to Avoid the 2 Most Common Mistakes in LSAT Conditional Reasoning

How to Avoid the 2 Most Common Mistakes in LSAT Conditional Reasoning

A student of ours who's working through the PowerScore Logical Reasoning Bible asked a common question the other day, and I want to share it, and my response, with you. Specifically she's been struggling with Mistaken Negations and Mistaken Reversals in conditional reasoning, and asked if I could help her better understand those two errors. Here's my reply: Common Roadblock Conditional reasoning is a tricky concept for a lot of people, so don’t … [Read more...]

Posted by Jon Denning / Logical Reasoning, LSAT Prep / Conditional Reasoning, Logical Reasoning, LSAT Prep Leave a Comment

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