Which change is most impactful when an argument depends on a definition or categorization?
QUESTION
What strengthening change is most impactful for a causal conclusion based only on correlation?
QUESTION
What is the most impactful type of weakening evidence against a causal claim in a passage?
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ANSWER
A plausible alternative cause that explains the same effect. Introducing an alternative explanation for the observed effect undermines the claimed causal relationship more effectively than other types of evidence.