Browse the glossary using this index
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EXTERNAL VALIDITY:
The extent to which the conclusions of an experiment apply to a wide variety of conditions.
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EXTERNAL VALIDITY:
The correctness or validity of conclusions about the generalizability of a functional relationship to and across other people, behaviors, or settings. 22
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EXTERNAL VALIDITY: External validity refers to the extent
that an experimental finding generalizes to other behaviors,
settings, and populations. That is, does the cause-and-effect
relationship found in an experiment occur at different times and
places, when the original conditions are in effect? |
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EXTEROCEPTIVE STIMULUS:
any stimulus presented at or outside of the organism's skin. Cf. INTEROCEPTIVE STIMULUS.
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EXTINCTION:
A procedure in which the reinforcement of a previously reinforced behavior is discontinued. Also may be used to describe the "process" by which a previously learned behavior disappears as a result of nonreinforcement. 23
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EXTINCTION:
Withholding the reinforcers that maintain a target behavior.
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EXTINCTION: In operant behavior, discontinuing the reinforcement of a response
(or the reduction in responding that follows this operation). In
negative reinforcement (escape and avoidance), extinction has often referred to the
discontinuation of aversive stimuli, although the term applies more
appropriately to discontinuing the consequences of responding.
Aversive stimuli are presented but responses no longer prevent
them. The discontinuation of punishment (see RECOVERY) is rarely
referred to as a variety of extinction.
In respondent conditioning, extinction
is presenting the CS without, or no longer in a contingent relation
to, the US (or the discontinuation in conditioned responding that
follows this operation). |
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EXTINCTION: The procedure of extinction involves
the breaking of the contingency between an operant and its
consequence. For example, a bar press that was followed by food
reinforcement no longer produces food. As a behavioral process,
extinction refers to a decline in the
frequency of the operant when an extinction procedure is in effect. In both
instances, the term extinction is used
correctly. |
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EXTINCTION:
There is no definition currently available.
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EXTINCTION:
Stopping the reinforcement or escape contingency for a previously reinforced response causes the response rate to decrease.
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