A summary of the results of the hattie study can be found here:
http://www.treasury.govt.nz/publications/media-speeches/guestlectures/pdfs/tgls-hattie.pdf
A summary of the results of the hattie study can be found here:
http://www.treasury.govt.nz/publications/media-speeches/guestlectures/pdfs/tgls-hattie.pdf