ABA Exam CoachLessons · B. Concepts and Principles
B.10 · Concurrent, multiple, mixed, and chained
Concurrent, multiple, mixed, chained: four compound schedules with names that blur together. Three quick questions sort any of them, so let's walk through them.
Key takeaway
First, ask whether the schedules run at the same time, for different responses. If they do, it's concurrent. If the components come one after another, ask whether each one has its own SD. Then ask whether reinforcement comes in every component or only at the end. Signaled with reinforcement in each component is multiple, unsignaled is mixed, and signaled with reinforcement only at the end is chained.
First, ask whether the schedules run at the same time, for different responses. If they do, it's concurrent. If the components come one after another, ask whether each one has its own SD. Then ask whether reinforcement comes in every component or only at the end. Signaled with reinforcement in each component is multiple, unsignaled is mixed, and signaled with reinforcement only at the end is chained.
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The video walks through the idea, worked examples, the trap people fall into and an exam-style question. The notes and the checkpoint come with it, and your results feed your Where to focus plan.