John Hattie
John Allan Clinton Hattie (born 1950) was born in Timaru, New Zealand, and has been a professor of education and director of the Melbourne Education Research Institute at the University of Melbourne, Australia, since March 2011. He was previously professor of education at the University of Auckland, the University of North Carolina Greensboro, and the University of Western Australia. His research interests include performance indicators and evaluation in education, as well as creativity measurement and models of teaching and learning. He is a proponent of evidence based quantitative research methodologies on the influences on student achievement. He led  the team that created the Assessment Tools for Teaching and Learning research and development contract and which is currently deployed by the New Zealand Ministry of Education for use in schools. Prior to his move to the University of Melbourne, Hattie was a member of the independent advisory group reporting to the New Zealand's Minister of Education on the national standards in reading, writing and maths for all primary school children in New Zealand. Hattie undertook the largest ever synthesis of meta-analyses of quantitative measures of the effect of different factors on educational outcomes leading to his book  Visible Learning. His PhD thesis at the University of Toronto in 1981 was about the detection of uni dimensionality. "Visible Learning" has come under criticism for mathematical flaws in the calculation of effect sizes and misleading presentation of meta-analyses in the book. In the 2011 Queen's Birthday Honours, Hattie was appointed an Officer of the New Zealand Order of Merit, for services to education. He is married to Professor Janet Clinton, also at the University of Melbourne.