LSAT Reading Flashcards: Apply The Principle

What this deck covers

This deck focuses on Apply The Principle, giving you a quick way to review the definitions, rules, and examples that matter most for LSAT Reading.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: What is the primary task in an Apply-the-Principle question in LSAT Reading Comprehension?

Answer: Select the option that best follows the passage's stated general rule. The answer must match the passage's rule, not just any detail.

Flashcard 2: Which option best applies: Principle: "An exception applies only when the stated condition is met." Case: Condition is not met.

Answer: The exception does not apply. No condition met means no exception granted.

Flashcard 3: What is the core task in an LSAT RC "Apply the Principle" question?

Answer: Apply an abstract rule to a new fact pattern to reach the best match. Match abstract rules from the passage to new scenarios in answer choices.

Flashcard 4: What is the correct approach when the principle is qualified by an exception?

Answer: Apply the exception first; it can override the general rule. Exceptions limit the rule's scope and take precedence when applicable.

Flashcard 5: What should you prioritize when the principle has multiple elements or prongs?

Answer: Check each prong; the correct choice satisfies all required elements. Multi-part principles require satisfying every component, not just some.

Flashcard 6: Which logical relationship should you look for when the principle is stated as a sufficient condition?

Answer: If the triggering condition occurs, the outcome must follow. Sufficient conditions work forwards: trigger → outcome.

Flashcard 7: Which option violates the rule? Rule: If a measure restricts speech, it is presumptively invalid. Choice says: It restricts speech and is valid.

Answer: It violates the rule by affirming validity despite restricting speech. Can't be valid if it restricts speech (violates presumptive invalidity).

Flashcard 8: Identify the correct conclusion from: "If a policy reduces emissions, it is justified" and "Policy P reduces emissions."

Answer: Policy P is justified. Sufficient condition met (reduces emissions), so conclusion follows.

Flashcard 9: Which option must be true: "No artworks created under coercion are authentic" and "Work W was created under coercion"?

Answer: Work W is not authentic. "No X are Y" means if X, then not Y; coercion → not authentic.

Flashcard 10: What should you do when no answer choice perfectly matches the principle?

Answer: Choose the closest match that preserves the rule's key constraints. When all choices are imperfect, pick the one violating fewest conditions.

Flashcard 11: Choose the best match: Principle: "If evidence is obtained illegally, it must be excluded." Case: Police search without a warrant and find evidence.

Answer: The evidence must be excluded. Illegal obtaining triggers mandatory exclusion per the rule.

Flashcard 12: What must a correct principle in the passage do relative to its examples or reasoning?

Answer: It must unify them by stating the rule that explains the author's treatment. The principle must explain why the author treats examples similarly.

Flashcard 13: Which option follows: "Most peer-reviewed claims are reliable" and "Claim C is peer-reviewed"?

Answer: Claim C is likely reliable, but not guaranteed reliable. "Most" creates probability, not certainty.

Flashcard 14: Identify the valid inference: Rule: If evidence is hearsay, it is inadmissible unless it fits a recognized exception. Statement H is hearsay and fits an exception.

Answer: Statement H is admissible. The exception makes inadmissible hearsay admissible.

Flashcard 15: Identify the flaw: Applying "All regulated drugs are safe" to conclude "This safe drug is regulated." What is the error?

Answer: Affirming the consequent (reversing sufficient and necessary conditions). Can't reverse "all A are B" to conclude "all B are A."

Flashcard 16: What is the most common trap in Apply the Principle answer choices?

Answer: A choice that matches topic or keywords but violates a key condition. Attractive distractors often miss a crucial requirement of the principle.

Flashcard 17: Which passage statement is most likely to function as the governing principle for application questions?

Answer: A conditional or normative generalization (rule) stated broadly, not a detail. Principles are broad rules, not specific facts or examples.

Flashcard 18: What is the key difference between applying a principle and finding an inference from the passage?

Answer: Principle: use a rule on new facts; inference: derive from given text only. Principles extend to new scenarios; inferences stay within the text.

Flashcard 19: Identify the valid inference: Rule: If a species is invasive, it disrupts local ecosystems. Species X disrupts local ecosystems. What follows?

Answer: No valid inference that Species X is invasive. Affirming the consequent fallacy; disruption doesn't prove invasiveness.

Flashcard 20: Identify the correct application: Rule: If an act is negligent, liability follows unless the harm was unforeseeable. Act N is negligent; harm was unforeseeable.

Answer: No liability follows due to the unforeseeability exception. The exception (unforeseeable harm) overrides the general liability rule.

Flashcard 21: Which option is the best application when the principle has two requirements: "If $A$ and $B$, then $C$" and the case has $A$ but lacks $B$?

Answer: You cannot conclude $C$; the sufficient condition ($A$ and $B$) is unmet. Both conditions needed; missing $B$ prevents conclusion $C$.

Flashcard 22: What is the best way to restate a principle before going to the answer choices?

Answer: As a short rule with clear conditions and a clear outcome. Simplify complex principles into if-then format for easier application.

Flashcard 23: What should you extract first from the passage to solve an Apply the Principle question?

Answer: The governing principle stated or implied in the passage. Look for the rule or standard that controls the situation described.

Flashcard 24: Which option is consistent? Rule: If a disclosure is voluntary, penalties do not apply. Disclosure D is voluntary. Option says: penalties apply to D.

Answer: Inconsistent; penalties should not apply to Disclosure D. Contradicts the rule; voluntary disclosure should avoid penalties.

Flashcard 25: What is the best first step when you see an Apply-the-Principle question stem?

Answer: Restate the principle as a short if–then rule in your own words. Converting to if-then format clarifies the rule's logic.

Flashcard 26: Identify the valid inference: Principle: If research is publicly funded, results must be disclosed. Study S is publicly funded. What follows?

Answer: Study S's results must be disclosed. Public funding triggers the sufficient condition for disclosure.

Flashcard 27: Choose the correct application: Principle: "A right may be limited when it causes direct harm to others." Case: Loud music at $2$ a.m. keeps neighbors awake.

Answer: The right to play loud music may be limited due to direct harm to others. Loud music directly harms neighbors' sleep, triggering the limitation.

Flashcard 28: Which passage language most often signals a principle you must apply?

Answer: Conditional or normative cues such as "if," "only if," "must," "should.". These words signal rules with specific triggers and outcomes.

Flashcard 29: Identify the valid inference: Principle: If a policy is unfair, it should be revised. Policy P is unfair. What follows?

Answer: Policy P should be revised. Unfair triggers the sufficient condition, requiring revision.

Flashcard 30: What is the correct approach if an answer choice matches a passage detail but not the passage's rule?

Answer: Eliminate it; Apply-the-Principle is driven by the rule, not surface overlap. Matching details without matching the rule is a trap answer.

Flashcard 31: Identify the valid inference: Principle: Only actions that are lawful are permitted. Action A is permitted. What follows?

Answer: Action A is lawful. Contrapositive: permitted → lawful (necessary condition satisfied).

Flashcard 32: Which logical relationship should you look for when the principle is stated as a necessary condition?

Answer: If the outcome occurs, the required condition must be present. Necessary conditions work backwards: outcome → requirement.

Flashcard 33: Which choice best matches the rule? Rule: A selection is fair only if it uses merit-based criteria. Choice says: It is fair and uses non-merit criteria.

Answer: It does not match; it contradicts the "only if" condition. Violates necessary condition: fair requires merit-based criteria.

Flashcard 34: Identify the correct conclusion from the principle: "Only if a study is replicated is it reliable" and "Study S is reliable."

Answer: Study S was replicated. "Only if replicated" means reliable → replicated, so S was replicated.

Flashcard 35: What should you do if the principle uses necessary and sufficient conditions?

Answer: Track direction: sufficient triggers; necessary is required for the outcome. Sufficient conditions guarantee outcomes; necessary conditions must be present.

Flashcard 36: What is the best criterion for the correct answer in Apply the Principle questions?

Answer: The choice whose facts satisfy the rule's conditions and produce its result. Correct answers fulfill all conditions and lead to the stated outcome.

Flashcard 37: Which option must be true? Rule: If a contract lacks consideration, it is unenforceable. Contract C lacks consideration.

Answer: Contract C is unenforceable. Lacking consideration triggers the rule making it unenforceable.