- Transition First Grade - a Success Story
- Special Education - A DI Meta-Analysis
- Ziggy Awarded Honorary Ph.D.
- Preschool for the Disadvantaged- DISTAR Language I Tested in South Africa
- Correlates of Gains in Algebra for Low Performing Hgh School Students
- Effects of Teacher Behavior on High-and Low-Ability Students in Algebra
- Generalization with Precision in Community Settings
- Teaching Complex Content to Secondary LD Students - Using Mastery Learning, Technology & DI Theory
- Corrections- Separation of Similar Responses and Similar Stimuli