A multiple probe design is similar to a multiple baseline design, with fewer measures of behavior. With this design, one can test the effects of a treatment across multiple entities (participants, settings, or behaviors) wherein each entity is probed for a baseline level of responding at least once prior to entering intervention and the start of intervention is staggered across participants, settings, or behaviors.
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More Information about Multiple Probe Designs
A multiple probe design is a variation on the multiple baseline in which the entities encounter fewer repeated sessions in each condition (see multiple baseline description). Here, all entities participate in an initial pre-intervention probe, providing an opportunity for the researchers to predict how behavior will change after intervention, before entity 1 enters the intervention condition. After entity 1 completes intervention (or a phase of intervention), the behavior of all entities are re-probed (entity 1’s first post-intervention probe and other entities’ second pre-intervention probe). This allows the researchers to demonstrate verification. After this, entity 2 enters intervention, providing an opportunity for the researchers to replicate entity 1’s change in behavior. Graphically, pre-probes and post-probes are separated by a staircase-like condition line across the data panels.