You are waiting at the crosswalk for the light to change. Finally the "WALK" sign illuminates and you begin to cross the street. Even though you watch for traffic as you cross, you have learned that the appearance of this light usually means that it is safe to cross the street. Thus, the "WALK" sign would be considered an example of a
A)discriminative stimulus
B)response cost
C)negative reinforcer
D)positive reinforcer

Question

Quizplus · Accepted Answer

The "WALK" sign acts as a discriminative stimulus because it signals that a specific response (crossing the street) will be reinforced (safely reaching the other side). It indicates when it is appropriate to perform a certain behavior.

You Are Waiting at the Crosswalk for the Light to Change