Applied Behavior Analysis Reversal & Alternating Treatments Designs
This set covers ABA experimental designs, describing the A-B-A design (baseline–treatment–baseline) and the A-B-A-B design, a more powerful within-subject approach that reintroduces treatment to assess behavioral change.
A-B-A design
experiment entailing on reversal (Baseline-treatment-baseline)
Key Terms
A-B-A design
experiment entailing on reversal (Baseline-treatment-baseline)
A-B-A-B design
most straightforward and powerful within subject design (Baseline-treatment-baseline- treatment)
B-A-B design
begins with the application of the independent variable (treatment) after stable rates, return to baseline, if bx worsens, treatment is reintroduce...
multiple treatment reversal design
experiments that use the reversal design to compare the effects to 2 or more experimental conditions to baseline and/or to one another
sequencing effects
effects of a subjects BX in a given condition that are a result of the subjects experience with a prior condition
NCR reversal design
deliver NCR on a fixed or variable time schedule independent of the subjects BX
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| Term | Definition |
|---|---|
A-B-A design | experiment entailing on reversal (Baseline-treatment-baseline) |
A-B-A-B design | most straightforward and powerful within subject design (Baseline-treatment-baseline- treatment) |
B-A-B design | begins with the application of the independent variable (treatment) after stable rates, return to baseline, if bx worsens, treatment is reintroduced |
multiple treatment reversal design | experiments that use the reversal design to compare the effects to 2 or more experimental conditions to baseline and/or to one another |
sequencing effects | effects of a subjects BX in a given condition that are a result of the subjects experience with a prior condition |
NCR reversal design | deliver NCR on a fixed or variable time schedule independent of the subjects BX |
DRO reversal design | control condition consists of delivering the event suspected of functioning as reinforcement following the emission of any BX other that then target BX. |
DRI/DRA reversal | control condition- occurrence of a specified BX that is either incompatible or alternative BX to the target BX are immediately followed by the same consequence previously delivered as contingent reinforcement for the target BX |
irreversibility | a level of BX observed in earlier phase cannot be reproduced even though the experimental conditions are the same as they were during an earlier phase |
alternating treatments design | rapid alternation of 2 or more distinct treatments (IV) while there effects on the target behavior are measured.
|
multiple treatment interference | the confounding effects of 1 treatment on the subjects BX being influenced by the effects of another treatment administered in the same study. |