Effects of homework on student achievement
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Homework and Student Achievement: General Effects
Research consistently shows that homework can have a positive effect on student achievement, but the strength and nature of this effect varies by age, subject, and how homework is assigned and completed. Several studies find that students who do homework tend to have higher academic performance compared to those who do not, especially in arithmetic computation and writing skills, though the effect is less clear for other areas like arithmetic concepts Eren2008Cooper2006Guo2024+1 MORE. However, some studies report that the overall impact of homework on academic achievement is limited or inconsistent, particularly at the primary school level Chaya2021Jamal2021.
Amount and Type of Homework: Optimal Duration and Subject Differences
The amount of homework assigned plays a significant role in its effectiveness. Moderate amounts of homework, especially in writing, have been shown to improve competency and sustain these gains over time, while excessive homework does not necessarily lead to better outcomes and may even reduce motivation and performance due to increased cognitive load and fatigue Zhang2023Guo2024Dolean2021. In mathematics, more homework can enhance achievement at lower cognitive levels, but this benefit plateaus after about 1.5 to 2 hours per day and does not extend to higher-level thinking skills .
Age and Grade Level: Differential Impacts
The positive relationship between homework and achievement is generally stronger for older students (grades 7–12) than for younger students (K–6) Cooper2006Cooper1998. In lower grades, the amount of homework assigned is weakly related to achievement and can even be associated with negative attitudes toward learning . For primary school students, the evidence for homework’s effectiveness is mixed, with some studies finding no significant impact on achievement, especially when homework is repetitive or not well-targeted Chaya2021Jamal2021.
Homework Completion and Student Motivation
Completing homework, rather than just being assigned homework, is more closely linked to higher achievement, particularly in upper grades Cooper1998Avcı2024. Student motivation, interest, and perceived value of homework are important factors that influence both homework completion and academic success. When students are motivated and see the value in their assignments, they are more likely to put in the effort needed to benefit from homework Xu2022Avcı2024.
Role of Teachers, Parents, and Homework Practices
Teacher and parental practices have a limited direct effect on academic achievement and homework completion, but support for student autonomy and positive attitudes toward homework can help Xu2022Avcı2024. At the class level, frequent and interesting homework assignments are associated with better achievement, while excessive teacher control can have a negative impact .
Conclusion
Homework can be a useful tool to enhance student achievement, especially when it is assigned in moderate amounts, tailored to the student’s age and cognitive level, and when students are motivated to complete it. The benefits are more pronounced for older students and in certain subjects like writing and basic math skills. However, too much homework or poorly designed assignments can reduce its effectiveness and even harm student attitudes and motivation. More research is needed to determine the optimal amount and type of homework for different age groups and subjects.
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