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About The Authors

Mark L. Sundberg, Ph.D., BCBA-D received his doctorate degree in Applied Behavior Analysis from Western Michigan University (1980), under the direction of Dr. Jack Michael. He is the author of the Verbal Behavior Milestones Assessment and Placement Program (VB-MAPP), and the co-author (with James W. Partington) of the Assessment of Basic Language and Learning Skills (ABLLS) and Teaching Language to Children with Autism or Other Developmental Disabilities; and he is the co-author (with Jack Michael) of the book A Collection of Reprints on Verbal Behavior. He has published over 50 professional papers, including the chapter titled “Verbal Behavior” in Cooper, Heron, & Heward (2007). He is the founder and past editor of the journal The Analysis of Verbal Behavior, a twice past-president of The Northern California Association for Behavior Analysis, a past-chair of the Publication Board of ABAI, and is a member of the committee that develops the BACB Task Lists. Dr. Sundberg has given presentations and workshops nationally and internationally, and has taught 80 college courses on behavior analysis, verbal behavior, sign language, and child development. He is a licensed psychologist in private practice who consults for private programs and public school classrooms that serve children with autism. Dr. Sundberg serves on the Board of Directors of the B. F. Skinner Foundation and is on the editorial board of The Analysis of Verbal Behavior and guest editor for the Journal of Applied Behavior Analysis. His awards include the 2001 “Distinguished Psychology Department Alumnus Award” from Western Michigan

Barbara Esch, Ph.D., CCC-SLP, BCBA-D is a behavior analyst and speech pathologist with over 30 years experience in behavioral interventions for individuals with developmental disabilities. She has worked in school, home, clinic, and hospital settings. Her workshops, training symposia, and research have been presented in the US, Europe, and Australia and focus on the use of behavioral procedures to improve speech, language, and feeding skills for individuals of all ages with a wide range of medical and educational diagnoses. Dr. Esch received her Ph.D. in Applied Behavior Analysis from Western Michigan University and her M.A. in Speech Pathology from Michigan State University. She is the author of the Early Echoic Skills Assessment, part of the Verbal Behavior Milestones Assessment and Placement Program: VB-MAPP (Sundberg, 2008). She is the founder and past chairperson of the Speech Pathology Special Interest Group of the Association for Behavior Analysis International. Her research on behavioral treatments for early speech acquisition appears in The Analysis of Verbal Behavior and the Journal of Applied Behavior Analysis. Dr. Esch is co-owner of Esch Behavior Consultants, Inc., a consulting company specializing in behavioral treatments for individuals with severe communication delays.

James W. Partington Ph.D., BCBA-D received his doctorate degree from Florida State University (1981) under the direction of Dr. Jon Bailey. He is the co-founder (along with Mary Ann Powers, Ph.D., BCBA-D) of Behavior Analysts, Inc. He is a licensed psychologist with more than 35 years experience working with children with autism or developmental disabilities. Prior to co-founding Behavior Analysts, Inc., Dr. Partington taught undergraduate and graduate level courses in psychology and behavior analysis at a variety of academic institutions. He is the co-author along with Mark L. Sundberg, Ph.D., BCBA-D of the original version of the ABLLS assessment program and the book Teaching Language to Children with Autism or Other Developmental Disabilities (1998). He is the sole author of the ABLLS-R,