Doug Greer is Professor of Education and Psychology and Coordinator of the Programs in Behavior Analysis at Columbia University, Teachers College and the Graduate School of Arts and Sciences, where he has taught for 37 years. He is the author of over 120 research reports (27 on verbal behavior analysis) and conceptual publications in 25 different journals, as well as 12 books, and he has sponsored 130 doctoral dissertations. Greer is a" Fellow of the Association for Behavior Analysis" and is the recipient of: (a) the American Psychology Association's "Fed S. Keller Award for Distinguished Cont...