Heredity, correlation and sex differences in school abilities studies from the Department of educational psychology at Teachers College, Columbia University This book, "Heredity, correlation and sex differences in school abilities studies from the Department of educational psychology at Teachers College, Columbia University", by Edward L. Thorndike, is a replication of a book originally published before 1903. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.