What is Discrete Trial Training?

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Discrete Trial Training (DTT) is a method of teaching in simplified and structured steps. Instead of teaching an entire skill in one go, the skill is broken down and “built-up” using discrete trials that teach each step one at a time (Smith, 2001).

Sometimes you might see the term “discrete trial procedure,” “discrete trial teaching,” or “discrete trial instruction,” but these terms are all the same as discrete trial training.

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Generally speaking, it is the most common used technique in ABA therapy while in the office.

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"Discrete Trial Training is one of the most important instructional methods for children with autism"

- Smith (2001, p.86)