medium · GMAT Verbal

The argument depends on which of the following assumptions?

1. A student's measured grades are the single sole valid measure of that individual's underlying intelligence.
2. Every student now enrolled at the school will eventually choose to adopt the new study habit.
3. Not even one student saw their grades actually decrease after they adopted the new study habit.
4. The new study habit is the only available method by which any student could ever possibly improve grades.
5. The score gains were not better explained by those students already being more motivated to succeed.

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