Final answer:
The question pertains to Discrete Trial Training (DTT), where SD is the discriminative stimulus that signals to a child the specific behavior that is expected. In teaching new material, an SD is used to prompt and reinforce the child's correct response.
Step-by-step explanation:
The student's question relates to Discrete Trial Training (DTT), a teaching strategy used in Applied Behavior Analysis (ABA) therapy for individuals with autism and other developmental disorders.
The acronym SD stands for discriminative stimulus, which is a specific environmental event or condition in response to which a child is expected to exhibit a particular behavior. In the context of acquiring new material, an SD might be a verbal instruction or a visual cue that signals to the child which response will be reinforced.
During a DTT session, a single SD would be presented to the child, and based on their correct or incorrect response, consequences such as reinforcement or correction procedures follow.
This method aims to help the child acquire new skills in a structured and systematic manner.