Weaken questions ask you to find the answer choice that most undermines the conclusion of an argument. The key is to attack the reasoning gap — not destroy the conclusion entirely, just make it less supported.

A) The Core Approach

Every argument has a gap — something the author assumes is true but has not proven. Weakening answers attack this gap. First identify the conclusion, then ask: "What does the author assume in moving from the premises to this conclusion? What would make that assumption false?"

B) Identifying the Question Type

• "Which of the following, if true, most seriously weakens the argument?"
• "Which of the following would most undermine the conclusion?"
• "Which of the following casts the most doubt on the conclusion?"
• Also: attack, counter, criticize, call into question, argue against, refute, challenge.

C) Common Weakening Patterns

• Alternative cause: argument concludes A causes B; answer shows C also (or instead) causes B.
• Reversed causation: argument says A → B; answer suggests B → A.
• Unrepresentative sample: argument generalizes from a group that isn't representative of the broader population.
• Flawed analogy: argument compares two situations; answer shows they differ in a relevant way.
• Overlooked alternative: argument presents limited options; answer shows additional possibilities the author ignores.

D) What a Weakening Answer Does

• Shows the conclusion does not follow from the premises as strongly as claimed.
• Does NOT need to make the conclusion false — just less certain or less supported.
• New information is explicitly allowed — accept it as true and evaluate its impact on the conclusion.
• The correct answer weakens the conclusion the MOST — a comparative judgment among the choices.

E) The Five Trap Types

• Opposite (Strengthener): the most common trap. Supports the conclusion instead of weakening it.
• Shell Game: uses similar language but modifies the relationship slightly, creating the illusion of relevance.
• Out of Scope: introduces genuinely unrelated information that does not connect to the conclusion.
• Wrong Conclusion: weakens a different claim than the one the author is making.
• Already Addressed: brings up a concern the stimulus has already handled.

F) Strategy

1. Find the conclusion precisely — identify the exact claim being made.
2. Find the reasoning gap — what is the author assuming but not proving?
3. Pre-think: "A correct answer would show X because…"
4. For each choice: "If this is true, does the conclusion become less supported?"
5. The correct answer weakens MOST — not just a little bit.