Hattie’s Table of Effect Sizes

Hattie’s Table of Effect Sizes

I need more information to make this table meaningful — and meta-analyses are always tricky things. But I think tables like this (and Hattie is just a follower here of Bloom and others) help people think about prioritizing changes to pedagogy.

What Hattie finds, of course, is unsurprising — feedback rules the roost when it comes to results. What would make this stuff meaningful of course is in-depth descriptions of how each attribute was defined and tested, but I guess for that you need the book

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