As the new edition of Impact magazine, the Chartered College of Teaching’s trade journal, arrives in UK staffrooms, it’s time to get out your staplers. Please print out the article below and staple it to the back of Impact. Cheers.
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Good one!
S
What’s that? Effect sizes are useless ways to make large comparisons in meta-analyses often invalid?!
SHHH!! Don’t tell John Hattie.
Reblogged this on The Echo Chamber.