Alfie Kohn, one of the smartest voices in the education reform discussion, has an interesting article about new research into the value of homework, one that includes a reminder of the important of reading studies carefully “rather than relying on summaries by journalists or even by the researchers themselves”.
Kohn, who literally wrote the book on the subject, the wonderful The Homework Myth: Why Our Kids Get Too Much of a Bad Thing, starts by noting the significant lack of support for the instructional value of homework found in previous studies.
First, no research has ever found a benefit to assigning homework (of any kind or in any amount) in elementary school.
Second, even at the high school level, the research supporting homework hasn’t been particularly persuasive.
Third, when homework is related to test scores, the connection tends to be strongest — or, actually, least tenuous — with math.
This latest study focuses on math and science homework in high school, an area that Kohn says is one “where you’d be most likely to find a positive effect if one was there to be found”.
And the result of this fine-tuned investigation? There was no relationship whatsoever between time spent on homework and course grade, and “no substantive difference in grades between students who complete homework and those who do not.”
This result clearly caught the researchers off-guard. Frankly, it surprised me, too. When you measure “achievement” in terms of grades, you expect to see a positive result — not because homework is academically beneficial but because the same teacher who gives the assignments evaluates the students who complete them, and the final grade is often based at least partly on whether, and to what extent, students did the homework. Even if homework were a complete waste of time, how could it not be positively related to course grades?
Beyond the value of homework, or the lack thereof, Kohn’s discussion of the research process itself, and especially how the researchers “reframe these results to minimize the stunning implications”, is well worth your time to read the whole article, footnotes and all.