a correlational research on delaying self-control of 2-year-olds and their family factors 2岁儿童延迟性自我控制及家庭因素的相关研究
correlational study on subjective well-being and mental health of elementary school teachers 小学教师主观幸福感与心理健康的相关研究
a correlational study of the non-intellective factors and academic achievements of the han, yi, bai and dai middle-school students 傣族初中生非智力因素与学习成绩的相关研究