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Types of ABA Study Designs

Multiple baseline across participants is done by having multiple participants in the study and staggering when the intervention is applied.  At first baseline data is taken on all participants, and then participants are given treatment over time.

Alternating treatments design switches treatments back and forth, one at a time.  The treatments are “turned on / off” and compared on a graph over time.

Withdrawal / Reversal Design starts without the intervention for baseline, adds the intervention and then removes it.  The intervention should theoretically return to the baseline condition.

Changing Criterion design either gradually increases or decreases the behavior goals by continually over time changing the goal.

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