Formal similarity
A concept in verbal behavior wherein the controlling stimulus (verbal SD) and the verbal behavior have the same topographical sense mode/form.
Forward chaining
A chaining method that involves teaching the behavior chain one step at a time, in its naturally occurring order, starting with the first step. The process involves moving on to
6th Edition TCO
Four-term contingency
A motivating operation is added to a three-term contingency and the added component of motivation has an abative or evocative effect on the behavior (e.g., MO-SD-Bx-C).
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6th Edition TCO
Free-operant avoidance
When the contingency for behavior is that it prevents and/or delays the onset of an aversive stimulus. The avoidant response occurs without the presence of a signal/SD and can occur
Free-operant behavior
A response class that is free to occur and can occur at any time because it is not bound by the control of SDs or prompts.
Free-operant teaching
A teaching methodology in which the SD is part of the natural environment, and responding doesn’t depend on a directive, prompt, or SD presented by a trainer. Appropriate behaviors are
Function-altering effect
A phenomenon where the consequence of a behavior in the presence of an MO changes the behavior evoked by the specific or similar MOs in the future.
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6th Edition TCO
Functional analysis (FA)
A functional assessment activity during which the antecedents and consequences in the client’s natural environment are arranged and systematically manipulated so that their individual effects on challenging behavior can be
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6th Edition TCO
Functional behavior assessment (FBA)
The methods and activities used by behavior analysts to gather information about the function of problem behavior, the results of which are used to guide goal setting and interventions for