average high school homework time

Analyzing ‘the homework gap’ among high school students

Subscribe to the brown center on education policy newsletter, michael hansen and michael hansen senior fellow - brown center on education policy , the herman and george r. brown chair - governance studies diana quintero diana quintero former senior research analyst, brown center on education policy - the brookings institution, ph.d. student - vanderbilt university.

August 10, 2017

Researchers have struggled for decades to identify a causal, or even correlational, relationship between time spent in school and improved learning outcomes for students. Some studies have focused on the length of a school year while others have focused on hours in a day and others on hours in the week .

In this blog post, we will look at time spent outside of school–specifically time spent doing homework–among different racial and socio-economic groups. We will use data from the American Time Use Survey (ATUS) to shed light on those differences and then attempt to explain those gaps, using ATUS data and other evidence.

What we know about out-of-school time

Measuring the relationship between out-of-school time and outcomes like test scores can be difficult. Researchers are primarily confounded by an inability to determine what compels students to choose homework during their time off over other activities. Are those who spend more time on homework just extra motivated? Or are they struggling students who need to work harder to keep up? What role do social expectations from parents or peers play?

Previous studies have examined the impact of this outside time use on educational outcomes for students. A 2007 study using data from Berea College in Kentucky identified a causal relationship between hours spent studying and a student’s academic performance through an interesting measure. The researchers took advantage of randomly assigned college roommates, paying attention to those who came to campus with a video game console in tow. They hypothesized students randomly assigned to a roommate without a video game console would study more, since all other factors remained equal. That hypothesis held up, and that group also received significantly higher grades, demonstrating the causal relationship.

Other research has relied on data collected through the American Time Use Survey, a study of how Americans spend their time, and shown the existence of a gender gap and a parental education gap in homework time. Other studies have looked at the relationship between holding a job and student’s time use in discretionary activities , like sleep, media consumption, and time spent on homework. We are curious about out-of-school differences in homework time by race and income.

Descriptive statistics of time use

We began with a general sample of 2,575 full-time high school students between the ages of 15 and 18 from the ATUS, restricting the sample to their answers about time spent on homework during weekdays and school months (September to May). Among all high school students surveyed (those that reported completing their homework and those that did not), the time allocated to complete homework amounted to less than an hour per day, despite the fact that high school teachers report they assign an average of 3.5 hours of homework per day.

To explore racial or income-based differences, in Figure 1, we plot the minutes that students reporting spending on homework separately by their racial/ethnic group and family income. We observed a time gap between racial groups, with Asian students spending the most time on homework (nearly two hours a day). Similarly, we observe a time gap by the students’ family income.

Time high school students spend on homework by race and parents' income

We can also use ATUS data to isolate when students do homework by race and by income. In Figure 2, we plot the percentage of high school students in each racial and income group doing homework by the time of day. Percentages remain low during the school day and then expectedly increase when students get home, with more Asian students doing more homework and working later into the night than other racial groups. Low-income students reported doing less homework per hour than their non-low-income peers.

Percentage of high school students doing homework by time of day, race, and income

Initial attempts to explain the homework gap

We hypothesized that these racial and income-based time gaps could potentially be explained by other factors, like work, time spent caring for others, and parental education. We tested these hypotheses by separating groups based on particular characteristics and comparing the average number of minutes per day spent on homework amongst the comparison groups.

Students who work predictably reported spending less time on educational activities, so if working disproportionately affected particular racial or income groups, then work could help explain the time gap. Students who worked allocated on average 20 minutes less for homework than their counterparts who did not work. Though low-income students worked more hours than their peers, they largely maintained a similar level of homework time by reducing their leisure or extracurricular activities. Therefore, the time gap on homework changed only slightly with the inclusion of work as a factor.

We also incorporated time spent taking care of others in the household. Though a greater percentage of low-income students take care of other household members, we found that this does not have a statistically significant effect on homework because students reduce leisure, rather than homework, in an attempt to help their families. Therefore, this variable again does not explain the time gaps.

Finally, we considered parental education, since parents with more education have been shown to encourage their children to value school more and have the resources to ensure homework is completed more easily. Our analysis showed students with at least one parent with any post-secondary degree (associate or above) reported spending more time on homework than their counterparts whose parents do not hold a degree; however, gaps by race still existed, even holding parental education constant. Turning to income levels, we found that parental education is more correlated with homework time among low-income students, reducing the time gap between income groups to only eight minutes.

Societal explanations

Our analysis of ATUS could not fully explain this gap in time spent on homework, especially among racial groups. Instead, we believe that viewing homework as an outcome of the culture of the school and the expectations of teachers, rather than an outcome of a student’s effort, may provide some reasons for its persistence.

Many studies, including recent research , have shown that teachers perceive students of color as academically inferior to their white peers. A 2016 study by Seth Gershenson et al. showed that this expectations gap can also depend on the race of the teacher. In a country where minority students make up nearly half of all public school students, yet minority teachers comprise just 18 percent of the teacher workforce, these differences in expectations matter.

Students of color are also less likely to attend high schools that offer advanced courses (including Advanced Placement courses) that would likely assign more homework, and thus access to rigorous courses may partially explain the gaps as well.

Research shows a similar, if less well-documented, gap by income, with teachers reporting lower expectations and dimmer futures for their low-income students. Low-income students and students of color may be assigned less homework based on lower expectations for their success, thus preventing them from learning as much and creating a self-fulfilling prophecy .

In conclusion, these analyses of time use revealed a substantial gap in homework by race and by income group that could not be entirely explained by work, taking care of others, or parental education. Additionally, differences in educational achievement, especially as measured on standardized tests, have been well-documented by race and by income . These gaps deserve our attention, but we should be wary of blaming disadvantaged groups. Time use is an outcome reflecting multiple factors, not simply motivation, and a greater understanding of that should help raise expectations–and therefore, educational achievement–all around.

Sarah Novicoff contributed to this post.

11 Surprising Homework Statistics, Facts & Data

Chris Drew (PhD)

Dr. Chris Drew is the founder of the Helpful Professor. He holds a PhD in education and has published over 20 articles in scholarly journals. He is the former editor of the Journal of Learning Development in Higher Education. [Image Descriptor: Photo of Chris]

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The age-old question of whether homework is good or bad for students is unanswerable because there are so many “ it depends ” factors.

For example, it depends on the age of the child, the type of homework being assigned, and even the child’s needs.

There are also many conflicting reports on whether homework is good or bad. This is a topic that largely relies on data interpretation for the researcher to come to their conclusions.

To cut through some of the fog, below I’ve outlined some great homework statistics that can help us understand the effects of homework on children.

Homework Statistics List

1. 45% of parents think homework is too easy for their children.

A study by the Center for American Progress found that parents are almost twice as likely to believe their children’s homework is too easy than to disagree with that statement.

Here are the figures for math homework:

46% of parents think their child’s math homework is too easy.
25% of parents think their child’s math homework is not too easy.
29% of parents offered no opinion.

Here are the figures for language arts homework:

44% of parents think their child’s language arts homework is too easy.
28% of parents think their child’s language arts homework is not too easy.
28% of parents offered no opinion.

These findings are based on online surveys of 372 parents of school-aged children conducted in 2018.

2. 93% of Fourth Grade Children Worldwide are Assigned Homework

The prestigious worldwide math assessment Trends in International Maths and Science Study (TIMSS) took a survey of worldwide homework trends in 2007. Their study concluded that 93% of fourth-grade children are regularly assigned homework, while just 7% never or rarely have homework assigned.

3. 17% of Teens Regularly Miss Homework due to Lack of High-Speed Internet Access

A 2018 Pew Research poll of 743 US teens found that 17%, or almost 2 in every 5 students, regularly struggled to complete homework because they didn’t have reliable access to the internet.

This figure rose to 25% of Black American teens and 24% of teens whose families have an income of less than $30,000 per year.

4. Parents Spend 6.7 Hours Per Week on their Children’s Homework

A 2018 study of 27,500 parents around the world found that the average amount of time parents spend on homework with their child is 6.7 hours per week. Furthermore, 25% of parents spend more than 7 hours per week on their child’s homework.

American parents spend slightly below average at 6.2 hours per week, while Indian parents spend 12 hours per week and Japanese parents spend 2.6 hours per week.

5. Students in High-Performing High Schools Spend on Average 3.1 Hours per night Doing Homework

A study by Galloway, Conner & Pope (2013) conducted a sample of 4,317 students from 10 high-performing high schools in upper-middle-class California.

Across these high-performing schools, students self-reported that they did 3.1 hours per night of homework.

Graduates from those schools also ended up going on to college 93% of the time.

6. One to Two Hours is the Optimal Duration for Homework

A 2012 peer-reviewed study in the High School Journal found that students who conducted between one and two hours achieved higher results in tests than any other group.

However, the authors were quick to highlight that this “t is an oversimplification of a much more complex problem.” I’m inclined to agree. The greater variable is likely the quality of the homework than time spent on it.

Nevertheless, one result was unequivocal: that some homework is better than none at all : “students who complete any amount of homework earn higher test scores than their peers who do not complete homework.”

7. 74% of Teens cite Homework as a Source of Stress

A study by the Better Sleep Council found that homework is a source of stress for 74% of students. Only school grades, at 75%, rated higher in the study.

That figure rises for girls, with 80% of girls citing homework as a source of stress.

Similarly, the study by Galloway, Conner & Pope (2013) found that 56% of students cite homework as a “primary stressor” in their lives.

8. US Teens Spend more than 15 Hours per Week on Homework

The same study by the Better Sleep Council also found that US teens spend over 2 hours per school night on homework, and overall this added up to over 15 hours per week.

Surprisingly, 4% of US teens say they do more than 6 hours of homework per night. That’s almost as much homework as there are hours in the school day.

The only activity that teens self-reported as doing more than homework was engaging in electronics, which included using phones, playing video games, and watching TV.

9. The 10-Minute Rule

The National Education Association (USA) endorses the concept of doing 10 minutes of homework per night per grade.

For example, if you are in 3rd grade, you should do 30 minutes of homework per night. If you are in 4th grade, you should do 40 minutes of homework per night.

However, this ‘rule’ appears not to be based in sound research. Nevertheless, it is true that homework benefits (no matter the quality of the homework) will likely wane after 2 hours (120 minutes) per night, which would be the NEA guidelines’ peak in grade 12.

10. 21.9% of Parents are Too Busy for their Children’s Homework

An online poll of nearly 300 parents found that 21.9% are too busy to review their children’s homework. On top of this, 31.6% of parents do not look at their children’s homework because their children do not want their help. For these parents, their children’s unwillingness to accept their support is a key source of frustration.

11. 46.5% of Parents find Homework too Hard

The same online poll of parents of children from grades 1 to 12 also found that many parents struggle to help their children with homework because parents find it confusing themselves. Unfortunately, the study did not ask the age of the students so more data is required here to get a full picture of the issue.

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Interpreting the Data

Unfortunately, homework is one of those topics that can be interpreted by different people pursuing differing agendas. All studies of homework have a wide range of variables, such as:

What age were the children in the study?
What was the homework they were assigned?
What tools were available to them?
What were the cultural attitudes to homework and how did they impact the study?
Is the study replicable?

The more questions we ask about the data, the more we realize that it’s hard to come to firm conclusions about the pros and cons of homework .

Furthermore, questions about the opportunity cost of homework remain. Even if homework is good for children’s test scores, is it worthwhile if the children consequently do less exercise or experience more stress?

Thus, this ends up becoming a largely qualitative exercise. If parents and teachers zoom in on an individual child’s needs, they’ll be able to more effectively understand how much homework a child needs as well as the type of homework they should be assigned.

Related: Funny Homework Excuses

The debate over whether homework should be banned will not be resolved with these homework statistics. But, these facts and figures can help you to pursue a position in a school debate on the topic – and with that, I hope your debate goes well and you develop some great debating skills!

Chris Drew (PhD) https://helpfulprofessor.com/author/chris-drew-phd-2/ 10 Reasons you’re Perpetually Single
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How Much Homework Is Too Much for Our Teens?

Here's what educators and parents can do to help kids find the right balance between school and home.

Does Your Teen Have Too Much Homework?

Today’s teens are under a lot of pressure.

They're under pressure to succeed, to win, to be the best and to get into the top colleges. With so much pressure, is it any wonder today’s youth report being under as much stress as their parents? In fact, during the school year, teens say they experience stress levels higher than those reported by adults, according to a previous American Psychological Association "Stress in America" survey.

Odds are if you ask a teen what's got them so worked up, the subject of school will come up. School can cause a lot of stress, which can lead to other serious problems, like sleep deprivation . According to the National Sleep Foundation, teens need between eight and 10 hours of sleep each night, but only 15 percent are even getting close to that amount. During the school week, most teens only get about six hours of zzz’s a night, and some of that sleep deficit may be attributed to homework.

When it comes to school, many adults would rather not trade places with a teen. Think about it. They get up at the crack of dawn and get on the bus when it’s pitch dark outside. They put in a full day sitting in hours of classes (sometimes four to seven different classes daily), only to get more work dumped on them to do at home. To top it off, many kids have after-school obligations, such as extracurricular activities including clubs and sports , and some have to work. After a long day, they finally get home to do even more work – schoolwork.

[Read: What Parents Should Know About Teen Depression .]

Homework is not only a source of stress for students, but it can also be a hassle for parents. If you are the parent of a kid who strives to be “perfect," then you know all too well how much time your child spends making sure every bit of homework is complete, even if it means pulling an all-nighter. On the flip side, if you’re the parent of a child who decided that school ends when the last bell rings, then you know how exhausting that homework tug-of-war can be. And heaven forbid if you’re that parent who is at their wit's end because your child excels on tests and quizzes but fails to turn in assignments. The woes of academics can go well beyond the confines of the school building and right into the home.

This is the time of year when many students and parents feel the burden of the academic load. Following spring break, many schools across the nation head into the final stretch of the year. As a result, some teachers increase the amount of homework they give. The assignments aren’t punishment, although to students and parents who are having to constantly stay on top of their kids' schoolwork, they can sure seem that way.

From a teacher’s perspective, the assignments are meant to help students better understand the course content and prepare for upcoming exams. Some schools have state-mandated end of grade or final tests. In those states these tests can account for 20 percent of a student’s final grade. So teachers want to make sure that they cover the entire curriculum before that exam. Aside from state-mandated tests, some high school students are enrolled in advanced placement or international baccalaureate college-level courses that have final tests given a month or more before the end of the term. In order to cover all of the content, teachers must maintain an accelerated pace. All of this means more out of class assignments.

Given the challenges kids face, there are a few questions parents and educators should consider:

Is homework necessary?

Many teens may give a quick "no" to this question, but the verdict is still out. Research supports both sides of the argument. Personally, I would say, yes, some homework is necessary, but it must be purposeful. If it’s busy work, then it’s a waste of time. Homework should be a supplemental teaching tool. Too often, some youth go home completely lost as they haven’t grasped concepts covered in class and they may become frustrated and overwhelmed.

For a parent who has been in this situation, you know how frustrating this can be, especially if it’s a subject that you haven’t encountered in a while. Homework can serve a purpose such as improving grades, increasing test scores and instilling a good work ethic. Purposeful homework can come in the form of individualizing assignments based on students’ needs or helping students practice newly acquired skills.

Homework should not be used to extend class time to cover more material. If your child is constantly coming home having to learn the material before doing the assignments, then it’s time to contact the teacher and set up a conference. Listen when kids express their concerns (like if they say they're expected to know concepts not taught in class) as they will provide clues about what’s happening or not happening in the classroom. Plus, getting to the root of the problem can help with keeping the peace at home too, as an irritable and grumpy teen can disrupt harmonious family dynamics .

[Read: What Makes Teens 'Most Likely to Succeed?' ]

How much is too much?

According to the National PTA and the National Education Association, students should only be doing about 10 minutes of homework per night per grade level. But teens are doing a lot more than that, according to a poll of high school students by the organization Statistic Brain . In that poll teens reported spending, on average, more than three hours on homework each school night, with 11th graders spending more time on homework than any other grade level. By contrast, some polls have shown that U.S. high school students report doing about seven hours of homework per week.

Much of a student's workload boils down to the courses they take (such as advanced or college prep classes), the teaching philosophy of educators and the student’s commitment to doing the work. Regardless, research has shown that doing more than two hours of homework per night does not benefit high school students. Having lots of homework to do every day makes it difficult for teens to have any downtime , let alone family time .

How do we respond to students' needs?

As an educator and parent, I can honestly say that oftentimes there is a mismatch in what teachers perceive as only taking 15 minutes and what really takes 45 minutes to complete. If you too find this to be the case, then reach out to your child's teacher and find out why the assignments are taking longer than anticipated for your child to complete.

Also, ask the teacher about whether faculty communicate regularly with one another about large upcoming assignments. Whether it’s setting up a shared school-wide assignment calendar or collaborating across curriculums during faculty meetings, educators need to discuss upcoming tests and projects, so students don’t end up with lots of assignments all competing for their attention and time at once. Inevitably, a student is going to get slammed occasionally, but if they have good rapport with their teachers, they will feel comfortable enough to reach out and see if alternative options are available. And as a parent, you can encourage your kid to have that dialogue with the teacher.

Often teens would rather blend into the class than stand out. That’s unfortunate because research has shown time and time again that positive teacher-student relationships are strong predictors of student engagement and achievement. By and large, most teachers appreciate students advocating for themselves and will go the extra mile to help them out.

Can there be a balance between home and school?

Students can strike a balance between school and home, but parents will have to help them find it. They need your guidance to learn how to better manage their time, get organized and prioritize tasks, which are all important life skills. Equally important is developing good study habits. Some students may need tutoring or coaching to help them learn new material or how to take notes and study. Also, don’t forget the importance of parent-teacher communication. Most educators want nothing more than for their students to succeed in their courses.

Learning should be fun, not mundane and cumbersome. Homework should only be given if its purposeful and in moderation. Equally important to homework is engaging in activities, socializing with friends and spending time with the family.

[See: 10 Concerns Parents Have About Their Kids' Health .]

Most adults don’t work a full-time job and then go home and do three more hours of work, and neither should your child. It's not easy learning to balance everything, especially if you're a teen. If your child is spending several hours on homework each night, don't hesitate to reach out to teachers and, if need be, school officials. Collectively, we can all work together to help our children de-stress and find the right balance between school and home.