Definition
Duplic refers to a verbal operant in which the speaker repeats the verbal behavior of another speaker. The key feature of duplic is that the form of the verbal response matches the form of the antecedent verbal stimulus (e.g., repeating spoken words, signing in response to another’s sign, or writing in response to a written prompt). The duplic operant includes responses such as echoics (repeating what someone says), mimicking signs, or copying text.
Example
A therapist says “dog,” and the child immediately repeats the word “dog.” This is an example of duplic because the child is repeating the verbal behavior (echoic) of the therapist. The child is not asked to name the object or describe it, just to repeat the spoken word.