In the context of discrete trial training (DTT), which activity best represents the application of this method?

The activity of the teacher showing the child a color and reinforcing recognition aligns well with the principles of discrete trial training (DTT). DTT is a structured method used for teaching skills in a one-on-one setting, characterized by clear and distinct trials. In this approach, each trial typically consists of an antecedent (the teacher's prompt or question), the behavior (the child's response), and a consequence (reinforcement or feedback).

In this situation, the teacher's act of presenting a specific color serves as the antecedent, prompting the child to recognize and respond to that color. The reinforcement that follows once the child correctly identifies the color serves to encourage the desired behavior. This method is effective for teaching specific skills through repeated trials with consistent reinforcement, fostering learning in a structured manner.

The other activities described do not exemplify DTT as effectively because they do not follow the structured framework of clear, independent trials. For instance, repeatedly asking a child to repeat a word might lack the targeted feedback component, teaching multiple colors at once can be overwhelming and does not isolate specific skills for mastery, and engaging in free play lacks the systematic structure needed for DTT.