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#1. A family is at a restaurant, and initially, a young adult named Alex wanted to order the fish. However, when Alex’s brother commented that the steak looked particularly good, Alex’s preference shifted, and upon the waiter’s arrival, Alex ordered the steak. In this scenario, what concept best describes the brother’s comment about the steak?
A Motivating Operation MO is an environmental variable that alters the effectiveness of a stimulus as a reinforcer valuealtering effect and alters the current frequency of all behavior that has been reinforced by that stimulus behavioraltering effect In this scenario Alexs brothers comment the steak looked good functioned as an MO It increased the value of the steak as a reinforcer for Alex valuealtering effect and consequently evoked the behavior of ordering the steak behavioraltering effect It is not a Discriminative Stimulus SD because an SD signals the availability of reinforcement for a particular behavior but does not alter the value of the reinforcer itself eg the waiter asking What would you like to order would be an SD for ordering as it signals that ordering will be reinforced by receiving food A Conditioned Stimulus CS is relevant to classical conditioning where a previously neutral stimulus acquires the ability to elicit a response through association A reinforcer is the consequence that follows a behavior and increases its future probability not the antecedent that alters its value
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