In GMAT Critical Reasoning, evaluating the validity of an argument using the Test of Variance requires that applying two opposite extreme answers to a evaluation question (such as 'yes' and 'no') produces opposite impacts on the strength of the conclusion.
Answer: Answer
Answer
True. The Test of Variance dictates that a key evaluation question must yield opposing logical effects (strengthening vs. weakening) when tested with opposite extreme responses.
The statement accurately summarizes the fundamental rule of the Test of Variance, where opposing extreme outcomes must exert opposite logical forces on the conclusion.
Step-by-Step Solution
Key Concept
Evaluating Argument Validity and Test of Variance