Valid and Invalid Statement Recognition Mini-Drill

Each of the following problems presents a pair of arrow diagrams which
feature a statement and then an attempted inference. The attempted inference
is either a valid Repeat form or Contrapositive, or an invalid Mistaken
Reversal or Mistaken Negation. Identify the form of the attempted inference in
each problem. Answer on Page 123
1. Original statement: A----> B
Attempted Inference: B----> A
2. Original statement: C----> D
Attempted Inference: D----> C
3. Original statement: E----> F
Attempted Inference: E----> F
4. Original statement: G----> H
Attempted Inference: H----> G
5. Original statement: I----> J
Attempted Inference: I----> J
6. Original statement: K----> L
Attempted Inference: L----> K
7. Original statement: M----> N
Attempted Inference: M----> N
8. Original statement: O----> P
Attempted Inference: P----> O
Valid and Invalid Statement Recognition Mini-Drill Answer Key

Must Be True and Main Point Question Stem Mini-Drill & Answer Key

Each of the following items contains a question stem from a recent LSAT
question. In the space provided, categorize each stem as either a Must Be True
or Main Point question, and notate any Except (X) identifier you see. Answers
on Page 110
1. Question Stem: “Which one of the following statements is most strongly
supported by the information above?”
Question Type: _______________________________________________
2. Question Stem: “The information above provides the LEAST support for
which one of the following?”
Question Type: _______________________________________________
3. Question Stem: “Which one of the following most logically completes the
argument?”
Question Type: _______________________________________________
4. Question Stem: “The educators’ reasoning provides grounds for accepting
which one of the following statements?”
Question Type: _______________________________________________
5. Question Stem: “Which one of the following most accurately expresses the
argument’s conclusion?”
Question Type: _______________________________________________
6. Question Stem: “Which one of the following can be inferred from the
passage above?”
Question Type: _______________________________________________

Must Be True and Main Point Question Stem Mini-Drill Answer Key
1. Question Type: Must Be True
Stem drawn from the October 2002 LSAT. In this case, the “most strongly
supported” is used with the intent of proving one of the answers correct. Hence,
this is a Must Be True question.
2. Question Type: Must Be True X
Stem drawn from the September 1998 LSAT. The presence of “LEAST” makes
this an Except question and the presence of the phrase “support for which one
of the following” adds the Must Be True element. The four incorrect answer
choices Must Be True; the correct answer choice is not necessarily true.
3. Question Type: Main Point-FITB
Stem drawn from the October 2002 LSAT. This is the question stem for a Fill in
the Blank (FITB) question , which asks you to identify the Main Point of the
argument.
4. Question Type: Must Be True
Stem drawn from the October 2002 LSAT. “Accepting which one of the
following statements” is identical to asking you to find the answer that is proven
by the information in the stimulus. Hence, this is a Must Be True question.
5. Question Type: Main Point
Stem drawn from the June 2003 LSAT. In asking for the argument’s conclusion,
the stem asks you to identify the Main Point of the argument.
6. Question Type: Must Be True
Stem drawn from the June 2000 LSAT. The word “inferred” means must be
true. Hence, this is a Must Be True question.

Except and Least Identify the Question Stem Mini-Drill

Each of the following items contains a question stem from a recent LSAT
question. In the space provided, categorize each stem into one of the thirteen
Logical Reasoning Question Types: Must Be True, Main Point, Point at Issue,
Assumption, Justify the Conclusion, Strengthen, Resolve the Paradox,
Weaken, Method of Reasoning, Flaw in the Reasoning, Parallel Reasoning,
Evaluate the Argument, or Cannot be True, and notate any Except (X)
identifier you see. Answers on Page 63
1. Question Stem: “Each of the following, if true, supports the claim above
EXCEPT:”
Question Type: _______________________________________________
2. Question Stem: “Each of the following, if true, weakens the argument
EXCEPT:”
Question Type: _______________________________________________
3. Question Stem: “Which one of the following, if all of them are true, is
LEAST helpful in establishing that the conclusion above is properly
drawn?”
Question Type: _______________________________________________
4. Question Stem: “Each of the following describes a flaw in the
psychologist’s reasoning EXCEPT:”
Question Type: _______________________________________________
5. Question Stem: “Which one of the following, if true, does NOT help to
resolve the apparent discrepancy between the safety report and the city’s
public safety record?”
Question Type: _______________________________________________
6. Question Stem: “If the statements above are true, each of the following
could be true EXCEPT:”
Question Type: _______________________________________________
Except and Least Identify The Question Stem Mini-Drill Answer Key: