Discrete Trial Training (DTT)

Discrete Trial Training is a specific learning opportunity which consists of a cue (referred to as a discriminative stimulus) accompanied by a prompt. The combination of cue and prompt evokes a response by the learner. Correct responses are followed by delivery of a preferred item. Incorrect responses result in a brief interval before the next trial is initiated. DTT allows for many teaching opportunities delivered at a fast pace, individualized selection of targets and increases in the child’s ability understand or discriminate the context under which the target response is appropriate.


Smith, T. (2001). Discrete Trial Training in the Treatment of Autism. Focus on autism and other developmental disabilities, 16 (2), 82-92.