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John Hattie's research on what leads to achievement is one of the most important contributions to education ever published.His studies are the most important contribution to achievement ever accomplished since the seminal 14-year study inspired by Carl Rogers and performed by the late David Aspy, FLora Roebuck, and in Germany by Reinhard Tausch In 42 US states and 7 countries which analyzed over 200,000 hours of classroom instruction to determine the traits of the most effective teachers.
Hattie's study of all the meta-analyses of all the research ever done to determine what leads to achievement and showing the Effect-Sizes of all interventions shows us that it is not the investment of more money for buildings, classrooms, smaller classes, more curriculum reform, better textbooks, or even better computer access for learners which lead to achievement. Rather it is the teacher behavior, what the students have already learned earlier, and the same human student-centered traits such as caring about students, empathy, genuineness, question-asking, interactivity, and organization of the teaching which lead to better achievement. Must reading for school administrators, teachers, parents, and researchers in education.
Dr. Harold C. Lyon, Jr
Prof of Medical Education
University of Munich
Former Director of Education for the Gifted & Talented
US Dept of Educationi