因此我們提出以下假說：

因此我們提出以下假說：

結果 (英文) 1:

But as the course becomes more difficult, students feel that their chances of success will be reduced, so the positive relationship between utility value and behavioral input will be weakened.

結果 (英文) 2:

But when the course becomes more difficult, students feel that their chances of success are reduced and therefore less useful value and positive relationship stoadded behavior.

結果 (英文) 3:

However, when the curriculum becomes more difficult, students feel that their probability of success will be reduced, so the positive relationship between utility value and behavior investment will be weakened.