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Zorluk: KolayEvaluating Argument Validity and Test of Variance

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.

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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.

Adım Adım Çözüm

1
Understand the core mechanism of evaluating argument validity.
To evaluate whether an argument's conclusion holds, one must identify missing information or assumptions that determine the argument's success.
The validity of an argument depends on whether key underlying conditions are met.
2
Apply the Test of Variance method.
Test both extreme logical answers (e.g., 100% vs 0%, or Yes vs No) to the proposed question.
If one extreme strengthens the conclusion and the other extreme weakens it, the question directly tests the argument's validity.

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Evaluating Argument Validity and Test of Variance
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Evaluating Argument Validity and Test of Variance

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