Which option is NOT a basic component of DTT?

• A. An antecedent (SD)
• B. A clearly defined prompt if needed
• C. A response
• D. Group instruction without reinforcement

Answer: (D)

Discrete Trial Teaching is built around a four-part sequence: a clear antecedent or discriminative stimulus, a prompt if the learner needs help, the learner’s response, and a consequence that typically includes reinforcement. Group instruction without reinforcement does not fit this format because it lacks the discrete, one-on-one trial structure and the immediate reinforcement that drives learning in DTT. The remaining elements—having a defined SD, a clearly defined prompt when needed, and the learner’s response—are all core components of each discrete trial, whereas instructional formats that involve group settings and no reinforcement aren’t part of DTT’s basic structure.