Discrete Trial Training (DTT)

January 1st, 2012 | Admin

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A discrete trial is a single cycle of a behaviorally based instruction routine. There are four steps in a discrete trial: the instruction, the prompt, the response, and the reward. Students must master each increment of a task before any new tasks are introduced. Research on DTT is normally included in ABA research.


A 2001 study that reviewed a series of 10 controlled studies concluded that “in all eight studies with language criterion responses, normalized language training was more effective than discrete trial training”  Controlled Studies

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