There haven't been any studies, but doing your homework helps you understand the material better, so you will make better scores.
99.9 percent
There are no studies on this
36% percent of kids get stressed about homework. if you want more info, go to kidshealth.com. it has alot of facts about kids having stress over homework and other things.
aproximately 23 percent
There are no scientific studies, so no figures can be quoted
42% is the average
According to researches, about 46% of kids drop because of video games.
Kids in California get the same amount of homework as kids in other states.
There are no studies on this but kids are not mature yet and many of them don't know how to set time deadlines for themselves - that's part of what you learn when you do homework.
No studies have been done, but most kids do have homework
It depends on what high school you attend, and it also depends on the teachers you have. Most students average between 2-4 hours of homework a night.
i think it should be 100% because tests are important!