Registered Behavior Technician (RBT) Practice Exam

A Mand SD is used to evoke a mand response, which is a request for something.

A Tact SD is used to evoke a tact response, which is a labeling of something in the environment.

D Listener responding SD is used to evoke a listener responding response, which is when a listener responds appropriately to a speaker's mand, tact, or intraverbal.

Option C, Vocal SD, is the correct answer because it precedes an echoic response. An echoic response is when an individual repeats the verbal behavior of another person. Therefore, a vocal SD would be used to evoke this type of response. The other options are incorrect because they do not directly precede an echoic response.