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#1. John wants to stay out late on Saturday night. He has learned from past experiences that if he asks his mom for permission, she is likely to say yes, but if he asks his dad, his dad will almost always say no. Consequently, John consistently approaches his mom when he wants to ask to stay out late. In this scenario, how is John’s mom functioning relative to his request to stay out late?
In Applied Behavior Analysis a discriminative stimulus SD is a stimulus in the presence of which a particular operant behavior is more likely to be reinforced In Johns scenario his moms presence or the act of asking her has through a history of reinforcement her saying yes become a signal that reinforcement permission to stay out is available for the behavior of asking to stay out Conversely his dads presence functions as an Sdelta S a stimulus in the presence of which a particular operant behavior is not reinforced John has learned to discriminate between the two parents based on the differential consequences his request has historically received An establishing operation EO would alter the value of the reinforcement eg making staying out more desirable or the frequency of behaviors that have been reinforced by that consequence but the mom herself is not changing the value of staying out but rather signaling the availability of the reinforcer A discriminative stimulus for punishment SDp would signal that a behavior is likely to be punished An abolishing operation AO would decrease the effectiveness of a reinforcer which is also not the case here Therefore Johns mom is functioning as a discriminative stimulus for reinforcement
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