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5 Cards in this Set
- Front
- Back
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Variable-ratio (VR) schedule
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A reinforcement schedule in which the reinforcer is given after a variable number of nonreinforced responses.
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Unconditioned stimulus (UCS)
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A stimulus that evokes an unconditioned response without previous conditioning.
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Variable-interval (VI) schedule
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A reinforcement schedule in which the reinforcer is given for the first response after a variable time interval has elapsed.
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Unconditioned response (UCR)
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An unlearned reaction to an unconditioned stimulus that occurs without previous conditioning.
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Trial
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In classical conditioning, any presentation of a stimulus or pair of stimuli.
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