Discrete trial training (DTT) is a method for individualizing and simplifying instruction to enhance children's learning. For children with autism, DTT is especially useful for teaching new forms of behavior (e.g., speech sounds or motor movements that the child previously could not make) and new discriminations (e.g., responding correctly to different requests). DTT can also be used to teach more advanced skills and manage disruptive behavior. However, several cautions about DTT are noteworthy: First, the method must be combined with other interventions to enable children to initiate the use of their skills and display these skills across settings. Second, early in treatment, children with autism may require many hours of DTT per week, although controversy exists over precisely how much is appropriate. Third, to implement DTT effectively, teachers must have specialized training. Despite these limitations, DTT is one of the most important instructional methods for children with autism.
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