People in ABA

Robert Koegel and Laura Schreibman developed PRT (Pivotal Response Training).  It targets self-initiation of the subject’s preferred activities in a natural setting..

Fred S. Keller developed PSI (Personalized System of Instruction), a self-paced teaching method.

Ogden Lindsley developed precision teaching which uses a semi-logarithmic chart also known as a Standard Celeration Chart.  The chart has a slope of 34 degrees.

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