These training materials were created for the Autism Center of Excellence at Western Michigan University.
Expert: Dr. Iser (Willie) DeLeon received his B.A and Ph.D. degrees from the University of Florida, with a brief detour in between for a master’s degree from Western Michigan University. He is an associate professor of psychology at the University of Florida. Dr. DeLeon further serves the behavior analytic community through membership on the Board of Directors of the Behavior Analysis Certification Board and the Society for the Experimental Analysis of Behavior, as well as the editorial boards of The Behavior Analyst, the Journal of the Experimental Analysis of Behavior, and the Journal of Applied Behavior Analysis, which he also served as associate editor. His research has focused on assessment and treatment of behavior problems in persons with intellectual and developmental disabilities, determinants of choice and preference in this population and translation of basic behavioral processes towards enhancing behavioral intervention.
"Stimulus Preference Assessment Procedures"
Entire video (1:42:35)
- Rationale for conducting preference assessments (2:50)
- Major types of preference assessment strategies (4:48)
- Self-report, teacher-report, and parent/caregiver report (5:19)
- Single stimulus preference assessment (6:50)
- Paired-stimulus preference assessment (Forced choice procedure) (15:02)
- Multiple-stimulus without replacement preference assessment (20:22)
- Downsides of this assessment (24:47)
- Free-operant (duration of engagement) preference assessment (31:41)
- Trouble shooting the free-operant assessment (restriction Assessment) (36:46)
- Methodology used in preference assessments (40:24)
- Reversal design (single operant analysis) (42:07)
- Concurrent operant analysis (45:06)
- Progressive ratio schedule (49:50)
- Cautionary notes (52:19)
- Controversy regarding extrinsic reward and intrinsic motivation (59:53)
- Over justification hypothesis
- Clinical demonstrations (1:13:34)