Explain the term 'discrete trial training' (DTT).

Discrete Trial Training (DTT) is a structured teaching method used in Applied Behavior Analysis (ABA) that breaks down complex tasks into smaller, more manageable components. This approach is particularly effective for teaching new skills to individuals with autism and other developmental disorders.

In DTT, each learning opportunity is presented as a "discrete trial," where the instructor provides a clear instruction or prompt, allowing the learner to respond. This response is then followed by reinforcement if it's correct, or feedback if it's not. By focusing on small, specific skills, DTT allows the learner to gradually acquire more complex behaviors through successive approximations.

This method emphasizes clear, structured sessions, where each trial is distinct and can be easily tracked, making it easier to collect data on the learner's progress and adjust the instruction accordingly. The systematic nature of DTT helps in fostering skill acquisition, increasing generalization, and ensuring that each component of a larger skill is mastered before moving on to the next part.