In the Cheung & Leung-Ngai (1992) survey, failure to complete homework and low grades where homework was a contributing factor was correlated with greater conflict; some students have reported teachers and parents frequently criticizing their work.
In the Met Life study, high school students reported spending more time completing homework than performing home tasks.
No research has ever been conducted to determine whether this claim has any merit.
Epstein (1988) found a near-zero correlation between the amount of homework and parents' reports on how well their elementary school students behaved.
Leone & Richards (1989) found that students generally had negative emotions when completing homework and reduced engagement compared to other activities.
Homework has been identified in numerous studies and articles as a dominant or significant source of stress and anxiety for students.A 2007 study of American students by Met Life found that 89% of students felt stressed from homework, with 34% reporting that they "often" or "very often" felt stressed from homework.Stress was especially evident among high school students.to prepare them for upcoming (or complex or difficult) lessons, to extend what they know by having them apply it to new situations, or to integrate their abilities by applying different skills to a single task.Homework also provides an opportunity for parents to participate in their children's education.Homework is designed to reinforce what students have already learned.Students who are assigned homework in middle and high school score somewhat better on standardized tests, but the students who have 60 to 90 minutes of homework a day in middle school or more than two hours in high school score worse.Other educators disagree with this and say the time spent at school is not enough so homework has to be given.Studies have shown that homework is important for the students because it can create good study habits and positive attitude towards learning as they grow older.By having a homework, the students will then have to schedule their time so that they can still do other home activities that they want to do.It can also instill a lesson for the younger students that learning can not only happen in school but also anywhere.