Do these widely believed factors really affect college students' grades?

Abstract

Presumably everyone knows that the grades of college students are generally not ideal. As far as our daily cognition is concerned, the factors that determine the grades of college students are nothing more than hard work, the quality of the learning environment, and the education of the family. But I think everyone has a certain misunderstanding about the determinants of college students' grades. As a college student, I can clearly feel that university study is completely different from middle school study. Here I have selected a few typical indicators that everyone believes influence college student grades, explored the reasons for this, and tested whether this is the case.