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Results

#1. Gracie, a 5-year-old girl, reliably displays the response of smiling and exclaiming ‘Aw’ whenever she encounters either a puppy or a baby. Although puppies and babies are physically distinct (i.e., they do not share topographical similarities), they consistently evoke the same specific verbal and non-verbal behavior from Gracie. From an ABA perspective, how would the stimuli of ‘puppy’ and ‘baby’ be collectively classified in relation to Gracie’s behavior?

A response class

A functional stimulus class

Topographically similar stimuli

Positive reinforcers

A functional stimulus class refers to a group of stimuli that may differ physically topographically but have a common effect on behavior that is they evoke the same operant response or serve the same function In this scenario puppies and babies are two distinct stimuli that despite their topographical differences consistently evoke Gracies Aw response Therefore they form a functional stimulus class A response class in contrast refers to a group of responses that produce the same effect on the environment eg various ways to open a door Topographically similar stimuli are stimuli that share physical resemblances which is explicitly stated not to be the case for puppies and babies here Finally labeling them as positive reinforcers would be premature while they may be appealing stimuli we do not have enough information to confirm if their presentation increases the future probability of Gracies Aw response or any other behavior

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