Diet (Effect size = 0.12)

docendo discimus

This post is part of a series looking at the influences on attainment described in Hattie J. (2009) Visible Learning: a synthesis of more than 800 meta-analyses relating to achievement. Abingdon: Routledge. The interpretation of Hattie’s work is problematical because the meaning of the different influences on achievement isn’t always clear. Further context here.

Working my way through the influences I’ve skipped a few that didn’t look terribly interesting, had low effect size, or had nothing to do with what happens in schools but I have had a little look at Diet (Effect size = 0.12) because I am surprised this is so low. At the college where I used to work, which was in a typical deprived coastal-urban setting, we had plenty of students who hadn’t been terribly successful at GCSE and were doing Level 1 and 2 courses to try to improve their qualifications. Amongst this…

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