Discrete Trial Training (DTT) is an intensive treatment program used to help children with developmental disabilities such as Autism. DTT involves training a child with Autism a variety of skills that they may not pick up on their own. DTT programs usually start by training essential pre-learning skills such as sitting and looking at the teacher; social skills such as looking at other people, talking and interacting with others appropriately. Once the basic skills have been mastered, DTT works towards teaching higher-level skills.

A discrete trial is a single cycle of a behaviorally-based instruction routine. A particular trial may be repeated several times in succession, several times a day, over several days – or even longer – until the skill is mastered.

Applied behavioral analysis (ABA) is the science from which the intensive behavioral intervention (IBI) is derived from.

It is an alternative method of communication other than a normal communication method used for a normal child.

It depends on the level of the ASD or Asperger syndrome of the child diagnosed with autism.

The communication learning process flow is given as:

• Listening
• Speaking
• Reading
• Writing