When a single verbal behavior response has multiple sources of antecedent control (e.g., and MO and a verbal SD or a nonverbal SD and a verbal SD, etc.)

When one antecedent variable affects the strength of many verbal behavior responses (e.g., the word “car’, can evoke many different responses such as, “drive”, “speed”, “transportation”, “traffic”, etc.).

A mand response that has multiple sources of antecedent control (e.g., an MO and a verbal SD, or an MO, a nonverbal SD, and a verbal SD, etc.).

A tact response that has multiple sources of antecedent control (e.g., a verbal and nonverbal SD, etc.).

A mand response that is exclusively controlled by an MO and no other antecedent stimuli.

A tact response that is exclusively controlled by a nonverbal SD and no other antecedent stimuli.

A verbal behavior that has one source of antecedent control (e.g., a mand that is only controlled by an MO or a tact that is only controlled by a nonverbal