1.
Research on differences of achievement motivation for college students with different sexes and grades;
大学生成就动机的性别差异和年级差异
2.
Interaction with Opposite Sex of Junior Middle-school Students in Countryside;
农村初中生异性交往心理问题及年级差异
3.
Research on Differences of Trait-anxiety Level between Grades and Specific Events in Students of Physical Education Specialty;
体育教育专业大学生特质焦虑水平的年级差异与专项差异研究
4.
The Grade Difference of Preservice Teachers Mental Health and Its Solution;
师范生心理健康的年级差异及对策分析
5.
The Different Perceptions among Students of Different Grades on Medical Education Environment;
大学生对医学教育环境知觉的年级差异
6.
Investigation on Difference of Junior School Students’ Mathematics Learning Beliefs Between Grades;
初中生数学学习观的年级差异调查研究
7.
Research on Difference of Self-strengthening for Normal University Students with different Sexes and Grades
师范大学生自强意识的性别与年级差异研究
8.
If there are differences, where are they?
归因在年级和性别之间是否存在差异，若有差异，差异何在。
9.
④there have difference(P=0.01) between low grade and high grade on factor of interperso nal and psychosis.
④一年级、二年级与五年级比较在人际关系因子和精神病因子上有差异,其余无显著性差异。
10.
2) Generally speaking, boys' achievements were superior to those of girls, but the difference was obvious only in Grade Three.
(2)男性优于女性,仅在初三年级出现显著差异;
11.
Motivational Differences between First-year and Third-year College Students;
非英语专业高低年级学生动机差异之研究
12.
A comparative study on grade and gender differences in the pressures on military college students;
军校大学生校园压力的年级和性别差异比较
13.
Difference Researches about Task Value of Grade and Sex;
关于任务价值的年级与性别差异的研究
14.
A Study on Difference in Mathematical Problem Representation Among Students of Different Grades;
不同年级中学生对数学问题表征的差异性研究
15.
Differences of learning motivation of college students in different sex, grade and major;
大学生学习动机的性别、年级及学科差异
16.
A Comparative Study of Pressures on College students in Beijing;
大学校园压力的年级和性别差异比较研究
17.
Difference Research for Achievement Motivation of College Students of Different Sex Grades and Majors;
不同性别、年级、专业大学生成就动机差异研究
18.
The Characteristic and Difference Research of Number Sense in Upperclass of Elementary School
小学高年级学生数感特点及差异性研究