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Or that better students simply spend more time on home study.13  In still other cases, a third variable for example, being born into a more affluent and highly educated family might be associated with getting higher test scores and with doing more homework (or attending the kind of school where more homework is assigned).  Homework booklet for parents of elementary and junior high school students. Helps parents understand why homework is important and makes suggestions for helping. The literature reviews done over the past 60 years. Report conflicting results, one expert concluded in 1985.  There is no good evidence that homework produces better academic achievement.7  Four years later, Harris Cooper, an educational psychologist, attempted to sort things out by conducting the most exhaustive review of the research to date. 

Limitations of the Research 1.  At best, most homework studies show only an association, not a causal relationship. Statistical principles dont get much more basic than correlation doesnt prove causation.  The number of umbrellas brought to a workplace on a given morning will be highly correlated with the probability of precipitation in the afternoon, but the presence of umbrellas didnt.

As for more recent studies looking for a relationship between achievement and time spent on homework, the overall correlation was about the same as the one found in 1989.10. Among the recent studies not included in Coopers new review:  One, using a methodology associated with economics, concluded that the amount of math homework given to teenagers was a very good. Law Homework Help. Question: What does the legislative branch do?, Topics: Law, Tags: government, Law, Law and Politics, United States, us government. There are almost always other explanations for why successful students might be in classrooms where more homework is assigned let alone why these students might take more time with their homework than their peers do.