A two-phase experimental design consisting of a pretreatment baseline condition (A) followed by a treatment condition (B).

A three-phase experimental design consisting of an initial baseline phase (A) until steady state responding (or counter-therapeutic trend) is obtained, an intervention phase in which the treatment condition (B) is implemented until the behavior has changed and steady state responding is obtained, and a return to baseline conditions (A) by withdrawing the independent variable to see whether responding "reverses" to levels observed by the initial baseline phase.

An experimental design consisting of (1) an initial baseline phase (A) until steady state responding (or counter-therapeutic trend) is obtained, (2) an initial intervention phase in which the treatment variable (B) is implemented until the behavior has changed and steady state responding is obtained, (3) a return to baseline conditions (A) by withdrawing the independent variable to see whether responding "reverses" to levels observed in the initial baseline phase, and (4) a second intervention phase (B)...

abative effect (of a motivating operation)

A decrease in the current frequency of behavior that has been reinforced by some stimulus, object, or even whose reinforcing effectiveness depends on the same motivating operation. For example, food ingestion abates (decreases the current frequency of) behavior such as opening the fridge that has been reinforced by food.

abolishing operation (AO)

A motivating operation that decreases the reinforcing effectiveness of a stimulus, object, or event. For example, the reinforcing effectiveness of food is abolished as a result of food ingestion.

acceptance and commitment therapy (ACT)

An evidence-based behavior therapy focusing on general well-being, defined as making reliable contact with high-priority positive reinforcers.

accuracy (of measurement)

The extent to which observed values, the data produced by measuring an event, match the true state, or true values, of the event as it exists in nature. (See also observed value and true value.)

adapted alternating treatments design

A variation of the multielement design for comparing the efficiency of instructional procedures. The comparison phase of the design features the alternating application of two (usually) or more different teaching methods, each method applied to different but equivalent sets of instructional items. All items are topographically different members of the same response or skill class, such as reading printed words, defining vocabulary terms, spelling words, answering math problems and stating history facts.

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ABA Terminology

Applied Behavior Analysis 3rd Edition

Term	Definition
A-B Design	A two-phase experimental design consisting of a pretreatment baseline condition (A) followed by a treatment condition (B).
A-B-A Design	A three-phase experimental design consisting of an initial baseline phase (A) until steady state responding (or counter-therapeutic trend) is obtained, an intervention phase in which the treatment condition (B) is implemented until the behavior has changed and steady state responding is obtained, and a return to baseline conditions (A) by withdrawing the independent variable to see whether responding "reverses" to levels observed by the initial baseline phase.
A-B-A-B Design	An experimental design consisting of (1) an initial baseline phase (A) until steady state responding (or counter-therapeutic trend) is obtained, (2) an initial intervention phase in which the treatment variable (B) is implemented until the behavior has changed and steady state responding is obtained, (3) a return to baseline conditions (A) by withdrawing the independent variable to see whether responding "reverses" to levels observed in the initial baseline phase, and (4) a second intervention phase (B)...
abative effect (of a motivating operation)	A decrease in the current frequency of behavior that has been reinforced by some stimulus, object, or even whose reinforcing effectiveness depends on the same motivating operation. For example, food ingestion abates (decreases the current frequency of) behavior such as opening the fridge that has been reinforced by food.
ABC recording	See anecdotal observation
abolishing operation (AO)	A motivating operation that decreases the reinforcing effectiveness of a stimulus, object, or event. For example, the reinforcing effectiveness of food is abolished as a result of food ingestion.
acceptance and commitment therapy (ACT)	An evidence-based behavior therapy focusing on general well-being, defined as making reliable contact with high-priority positive reinforcers.
accuracy (of measurement)	The extent to which observed values, the data produced by measuring an event, match the true state, or true values, of the event as it exists in nature. (See also observed value and true value.)
adapted alternating treatments design	A variation of the multielement design for comparing the efficiency of instructional procedures. The comparison phase of the design features the alternating application of two (usually) or more different teaching methods, each method applied to different but equivalent sets of instructional items. All items are topographically different members of the same response or skill class, such as reading printed words, defining vocabulary terms, spelling words, answering math problems and stating history facts.

Created by: shaunte581

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