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Test your basic knowledge |
LSAT Logical Reasoning Clues
Start Test
Study First
Subjects
:
logic-and-reasoning
,
LSAT
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. 1. Opposite answers. These answers do the exact opposite of What is needed. 2. Shell game answers. Occurs when an idea or concept is raised in the stimulus and then a very similar idea appears in the answer choices - but the idea is changed just enou
3 incorrect answer traps (weaken)
What to do when a stimulus that contains conditional reasoning is combined with a must be true question stem
Conclusion Indicators
Solving Parallel Reasoning questions in the order stated
2. Stimulus (accepted) --/-> answer choices (affected or determined) cannot be true.
Family #4: Disprove
Necessary Condition
2 roles played by assumptions
How to strengthen an argument
3. The makers of the LSAT do not think that there are multiple causes for the same effect. When an LSAT speaker concludes that one occurance caused another - that speaker also assumes that the stated cause is the only possible cause of the effect and th
Fundamental rules for strengthen - justify the conclusion and assumption questions
Straw Man
Causal statements
Central assumption of causal conclusions
4. Introduce something that actually contains an idea that is counter to the argument. By raising opposition - the author can minimize the damage that would be done by the objection if it were raised elsewhere. but yet - however - on the other hand - ad
2 roles played by assumptions
Counter Premise Indicators
Assumption Negation Technique
Sufficient Condition
5. 1. The stem uses the word strengthen or a synonym (support - helps - most justifies) 2. The stem indicates that you should accept the answer choices are true.
Typical assumption question stems
How to approach causality and strengthen questions?
Resolve the Paradox question stem features
Strengthen questions ask you to identify the answer choice that best supports the argument. 2 common features
6. 1. if you recognize the form of reasoning used in the stimulus (causal - conditional - etc.) immediately attack the answers and search for the answer with similar reasoning (analogy - circular reasoning) 2. The Conclusion - match the conclusions - to
Primary Objective #6
Fact test for Method of Reasoning questions
Solving Parallel Reasoning questions in the order stated
Logical opposites
7. 1. Stimulus will contain an argument. Must isolate and identify and assess the premises and the conclusion. 2. Focus on the conclusion. Almost all correct Weaken answers impact the conclusion. 3. The info in the stimulus is suspect. There are often r
Things to remember in regards to WEAKEN questions
Errors in the use of evidence
Central assumption of causal conclusions
What to do when a stimulus that contains conditional reasoning is combined with a must be true question stem
8. A statement or judgement that follows from one or more reasons. Ask: What is the author driving at? What does the author want me to believe? What point follows from the others?
Appeal Fallacies
Premise definition
General lack of relevant evidence for the conclusion
Conclusion definition
9. Think about the structure of the argument before examining the answer choices. Do not expect to see the exact prephrase - there are too many variations. Make an abstract prephrase then examine each answer to see if it paraphrases the prephrase.n
Prephrasing Method of Reasoning questions
Assumptions and causality: typical correct answer categories
3 incorrect answer traps (weaken)
Fundamental rules for strengthen - justify the conclusion and assumption questions
10. Whenever you identify a causal relationship in the conclusion of an LSAT problem - immediately prepare to either weaken or strengthen the argument. Tasks for Weaken questions...must always identify a causal conclusion. Then ask if there relationship
Resolve the Paradox question stem features
How to attack a causal conclusion
Prephrasing Method of Reasoning questions
Incorrect answers in Point at Issue questions
11. Carefully read and identify the question stem. DO NOT assume that certain words are automatically associated with certain questions types.
Words used to introduce cause and effect relationships. (memorize)
Primary Objective #5
Incorrect Method of Reasoning answers
Family #4: Disprove
12. Stimulus (affected or determined) ---> answer choices (accepted) AKA: Help Family assumption - justify the conclusion - strengthen/support - resolve the paradox.
Family #2: Help
Method of Reasoning
How to solve Justify questions mechanistically
Primary Objective #1
13. The author assumes as true What is supposed to be proved. exp: 'this essay is the best because it is better than all the others'n
Circular reasoning
Rules for Family #3
Conclusion Indicators
How to attack a causal conclusion
14. Thus - therefore - hence - consequently - as a result - so - accordingly - clearly - must be that - shows that - conclude that - follows that - for this reason.
Mistaken Negation
Sufficient Condition
Things to remember in regards to WEAKEN questions
Conclusion Indicators
15. 1. ethical versus factual situations - when the stimulus addresses something ethical - a factual answer would be incorrect and vice versa 2. dual agreement or dual disagreement - often incorrect answer choices will supply statements that both speaker
Incorrect answers in Point at Issue questions
3 quirks of assumption question answer choices
Primary Objective #4
Primary Objective #9
16. If all 5 answer choices appear to be 'losers' - return to the stimulus and re-evaluate the argument.
Circular reasoning
Sufficient Condition
Primary Objective #9
How to identify Justify the Conclusion questions
17. Occurs when the author uses an analogy that is two disimilar to the original situation to be applicable. n
Fundamental rules for strengthen - justify the conclusion and assumption questions
'Additional' Premise Indicators
False analogy
How to determine the strength of an argument
18. Prephrase: after reading the question stem - take a moment to mentally formulate your answer to the question stem.
Uncertain use of a term or concept
Probability indicators
Conclusion Identification Method
Primary Objective #6
19. To raise a viewpoint at the beginning of the stimulus and then disagree with it immediately thereafter. The stimulus often begins with: Some people claim... Some people propose... Many people believe... Some argue that... Some critics claim... Some s
Quantity indicators
One of the most commonly used stimulus structures is what? How are they recognized?
Primary Objective #2
Primary Objective #3
20. Assumes that only 2 courses of action are available when there may be others. n
False dilemma
Mistaken cause and effect
Straw Man
Things to remember in regards to WEAKEN questions
21. Determine whether the stimulus contains an argument or if it is only a set of factual statements. MUST recognize whether a conclusion is present.
Fundamental rules for strengthen - justify the conclusion and assumption questions
2 speaker questions
Primary Objective #1
Primary Objective #3
22. 1. No conclusion. When a stimulus does not have a conclusion and contains a paradox - expect a Resolve question 2. Language of contradiction exp: but - however - yet - although - paradoxically - surprisingly.
Assumptions and causality: typical correct answer categories
Words used to introduce numerical ideas
Appeal Fallacies
Common features of Resolve the Paradox
23. Always ask: Do the given facts support the conclusion? Do the premises strongly suggest that the conclusion would be true? Does the conclusion feel like an inevitable result of the premises? Or Does the conclusion go beyond the scope of the info in t
Probability indicators
How to determine the strength of an argument
Primary Objective #7
Mistaken cause and effect
24. Involves judgements made about groups and parts of a group. an error or composition occurs when the author attributes a characteristic of part of the group to the group as a whole or to each member of the group Error of division - author attributes c
Time shift errors
Errors of composition and division
How to identify Justify the Conclusion questions
Survey errors
25. Allows you to decide between contenders or to confirm that the answer you have chosen is correct. 1. Logically negate the answer choices under consideration. Usually consists of taking a 'not' out of a sentence or putting a 'not' in a sentence. 2. Th
Source argument AKA ad hominen
Common features of Resolve the Paradox
Assumption Negation Technique
How to approach causality and strengthen questions?
26. Percent - proportion - fraction - ratio - incidence - likelihood - probability - segment - share. n
Common features of Resolve the Paradox
Logical negation
Words used to introduce percentage ideas
How to strengthen an argument
27. A. Eliminate any alternate causes for the stated effect. B. Show that when the cause occurs - the effect occurs. C. Show that when the cause does not occur - the effect does not occur. D. Eliminate the possility that the stated relationship is revers
Premise definition
How to approach causality and strengthen questions?
Numbers and percentages Common misconceptions
Source argument AKA ad hominen
28. 1. The stimulus will almost always contain an argument you must identify - isolate and assess the premises and the conclusion of the argument 2. Focus on the conclusion. Almost all correct answer choices impact the conclusion 3. The info in the stimu
Weakening conditional reasoning
Errors of composition and division
Prephrasing Method of Reasoning questions
Fundamental rules for strengthen - justify the conclusion and assumption questions
29. Stimulus (affected or determined)--/-> answer choices (accepted) Negative sign on the arrow reflects attacking or hurting the argument (weaken).
Uncertain use of a term or concept
Primary Objective #2
Solving Parallel Reasoning questions in the order stated
Family #3: Hurt
30. 1. You can use only the info in the stimulus to prove the correct answer choice 2. Any answer choice that describes an element or a situation that does not occur in the stimulus is incorrect Method of Reasoning questions use a variety of formats - bu
Method of Reasoning questions
Incorrect Method of Reasoning answers
Justify the conclusion formula
Time shift errors
31. 1. The survey uses a biased sample 2. The survey questions are improperly constructed 3. Respondents to the survey give inaccurate responses. People do not always tell the truth when responding to surveys.n
Circular reasoning
Survey errors
Typical assumption question stems
Exceptional case/over generalization
32. Occurs when an author attempts to attack an opponent's position by ignoring the actual statements made by the opposing speaker and instead distorts and refashions the argument - making it weaker in the process. Often prephrased by 'what you're saying
Primary Objective #4
Primary Objective #5
Straw Man
the unless equation (conditional reasoning)
33. An event or circumstance whose occurrence is required in order for a sufficient condition to occur.
Necessary Condition
Strengthen questions ask you to identify the answer choice that best supports the argument. 2 common features
Conclusion Indicators
Logical negation
34. 1. Any 'new' element in the conclusion will appear in the correct answer. 2. Elements that are common to the conclusion and at least one premise normally do not appear in the correct answer. 3. Elements that appear in the premises but not the conclus
Words used to introduce a sufficient condition
How to identify Justify the Conclusion questions
3 quirks of assumption question answer choices
How to solve Justify questions mechanistically
35. They can be in the premises or conclusion. If they are in the conclusion the argument is flawed. Classic mistaken cause and effect reasoning refers to occurences when a causal assertion is made in the conclusion or the conclusion presumes a causal re
How to identify Justify the Conclusion questions
Causal statements
Mistaken cause and effect
Primary Objective #3
36. 1. You must accept the stimulus info- even if it contains an error in reasoning-and use it to prove one of the answer choices must be true. 2. Any info in an answer choice that does not appear either directly in the stimulus or as a combination of it
What to do when a stimulus that contains conditional reasoning is combined with a must be true question stem
False dilemma
Rules for Family #1
Numbers and percentage errors
37. Usually have one male and one female. The female uses sound reasoning and the male uses flawed reasoning or makes a mistake. This is not always true - but more often than not.n
2 speaker questions
Rules for Family #2
Errors of conditional reasoning
Quantity indicators
38. 1. An indication that the answer choices should be accepted as true 2. Keywords that indicate your task is to resolve the problem Action: Problem: Resolve Paradox Explain Contradiction Reconcile Discrepancy Conflict Puzzle *Attempt to prephrase Corre
Resolve the Paradox question stem features
Straw Man
General lack of relevant evidence for the conclusion
Internal contradiction AKA self contradiction
39. Separate the answer choices into 'contenders' and 'loser'. After completing this process - review the contenders and decide which answer correct.
Solving Parallel Reasoning questions in the order stated
Logical negation
Internal contradiction AKA self contradiction
Primary Objective #8
40. Weaken - attack - undermine - refute - argue against - call into question - cast doubt - challenge - damage - counter - When evaluating answers ask yourself: 'Would this answer choice make the author reconsider his position or force the author to res
Logical negation
Weaken question signal words
Words used to introduce percentage ideas
Errors of conditional reasoning
41. Take the statements under consideration and place them in an arrangement that forces once to be the conclusion and the other(s) to be the premise (s). Use premise and conclusion indicators to achieve this end. Once the pieces are arranged - determine
General lack of relevant evidence for the conclusion
Conclusion Identification Method
Primary Objective #1
How to identify Justify the Conclusion questions
42. 1. Identify the conclusion - this is what you are trying to strengthen 2. Personalize the argument 3. Look for weaknesses in the argument 4. Arguments that contain analogies or use surveys rely upon the validity of those analogies and surveys. Answer
How to approach causality and strengthen questions?
Conclusion Indicators
Internal contradiction AKA self contradiction
How to strengthen an argument
43. 1. new element answers - an answer that describes something that did not occure or describes an element new to the argument cannot be correct 2. Half right - half wrong answers - LSAT makers like to start off with something that happened - then end w
Words used to introduce numerical ideas
One of the most commonly used stimulus structures is what? How are they recognized?
Incorrect Method of Reasoning answers
Conclusion Identification Method
44. Mis-assessing the force of evidence is a frequent error committed by LSAT authors 1. Lack of evidence for a position is taken to prove that position is false 2. lack of evidence against a position is taken to prove that position is true 3. some evide
Errors in the use of evidence
Primary Objective #2
Primary Objective #6
Straw Man
45. 1. If conditional statements are linked together in the argument - the correct answer choice for an assumption question will typically supply a missing link in the chain or the contrapositive to that link. 2. If you see a conditional conclusion and t
Method of Reasoning questions
Family #3: Hurt
Uncertain use of a term or concept
Assumptions and conditionality: the two types of answer choices normally produced are?
46. They h ave failed to fully and accurately identify the conclusion of the argument. If a conclusion is present - you MUST identify it prior to proceeding on to the question stem.
Numbers and percentages Common misconceptions
What is the biggest reason students miss questions?
How to solve Justify questions mechanistically
Counter Premise Indicators
47. 1. Whatever term is modified by 'unless' - 'except' - 'until' or 'without' becomes the necessary condition 2. The remaining term is negated and becomes the sufficient condition.
Premise Indicators
LSAT Conclusion trick for Method AP questions
the unless equation (conditional reasoning)
Probability indicators
48. 1. Appeal to authority - uses the opinion of an authority in an attempt to persuade the reader. The flaw is that the authority may not have relevant knowledge or all of the info regarding the situation - to there may be a difference of opinion among
the unless equation (conditional reasoning)
Resolve the Paradox question stem features
False analogy
Appeal Fallacies
49. As an argument progresses - the author must use each term in a constant - coherent fashion. using a term in different ways is inherently confusing and undermines the integrity of the argument. n
Uncertain use of a term or concept
What to do when a stimulus that contains conditional reasoning is combined with a must be true question stem
LSAT Definition of 'either/or'
Common features of Resolve the Paradox
50. Negates both conditions - creating a statement that does not have to be true. Given: A+ --> Study Mistaken Negation: Not A+ --> Not Study
Mistaken Negation
Premise definition
Incorrect Method of Reasoning answers
How to approach causality and strengthen questions?