求翻译：研究还表明家长参与孩子做作业的过程并跟学校保持联系和沟通，这类学生的学习成绩好过那些同等条件但家长不参与做作业过程的学生。是什么意思？

The study also shows that the process of parents involved in their children's homework and to maintain contact and communication with schools, student performance is better than those of these same conditions, but parents do not participate in the process of student homework.

Studies have also shown that the parents to be involved in their children to do their homework and maintain contact with the schools and communication, such the learning achievement of students is better than those same conditions to do their homework but parents are not involved in the process.

正在翻译，请等待...

Studies also indicate that parents ' involvement in the child process of doing the job and to maintain liaison and communication with school, these students ' academic performance is better than those same conditions but students parents not involved in the homework process.

The study also shows that the process of parents involved in their children's homework and to maintain contact and communication with schools, student performance is better than those of these same conditions, but parents do not participate in the process of student homework.