Robert L. Thorndike

Robert L. Thorndike (1910-1990) was a psychometrician and educational psychologist who made significant contributions to cognitive ability testing. Like his father, Edward Thorndike, he conducted research in both animal and human psychology. With Irving Lorge, Thorndike published a standardized test in 1954 which later became, with the collaboration of Elizabeth Hagen, the widely used Cognitive Ability Test.