个人目标取向、课堂目标结构和文化因素对不同年级学生学业求助的影响模式不同。

The patterns of personal goal-orientation, classroom goal structures and culture factors on different graders' academic help-seeking were different.

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但是各个学校学生的考试焦虑具有不同的发展趋势，不同年级学生的考试焦虑也具有不同的学校特点。

However there are different developing trends for students of different schools, and different school features for students of different grades.

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不同年级的学生在薪酬方面也存在明显差异。

There are also stark differences in pay across grades.

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