John Hattie

Professor Hattie's work is internationally acclaimed. His influential 2008 book Visible Learning: A synthesis of over 800 Meta-Analyses Relating to Achievement is believed to be the world’s largest evidence-based study into the factors which improve student learning.

Involving more than 80 million students from around the world and bringing together 50,000 smaller studies, the study found positive teacher-student interaction is the most important factor in effective teaching.