Examlex
The Immigration Act of 1965 maintained a strict limit on the number of immigrants to be admitted to the United States,even as it eliminated much of the "national origins" system of the 1920s.
Operant Conditioning
A learning process where the consequences of a behavior affect the likelihood of that behavior occurring again.
UCR
Unconditioned Response, which is an automatic, natural reaction to a stimulus in classical conditioning theory.
UCS
Unconditioned Stimulus, an aspect of classical conditioning theory, referring to a stimulus that naturally triggers a reflexive or involuntary response without prior learning.
CS
Stands for Conditioned Stimulus in classical conditioning; a neutral stimulus that, after being repeatedly paired with an unconditioned stimulus, becomes able to elicit a conditioned response.
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