Hattie, John. Visible learning : a synthesis of over 800 meta-analyses relating to achievement / John A.C. Hattie. - London ; New York : Routledge, 2009. - ix, 378 p. : ill. ; 25 cm. Includes bibliographical references (p. [301]-374) and index. ISBN: 9780415476188 (pbk.) 0415476186 (pbk.) 9780415476171 (hardback) 0415476178 (hardback) LCCN: 2008021702 Subjects--Topical Terms: Learning--Longitudinal studies.Teaching--Longitudinal studies.Effective teaching--Longitudinal studies.Teacher effectiveness--Longitudinal studies. Subjects--Index Terms: Visible learning LC Class. No.: LB1060.H388 2009 / .H388 2009 Dewey Class. No.: 370.15/23