ABA Exam CoachLessons · B. Concepts and Principles
B.2 · Stimulus and stimulus class
One beep is one thing, and a whole family of things that all get the same response is something else. Let's get stimulus versus stimulus class straight in the next couple of minutes, because this distinction is core to the test content outline.
Key takeaway
A stimulus is one specific energy change that affects you through your senses, like a single beep. A stimulus class is a group of stimuli that share a common element: their form, their timing relative to behavior, or their effect on behavior. If the members look or sound alike, it's a feature class. If they don't, but they still evoke the same response, it's an arbitrary class.
A stimulus is one specific energy change that affects you through your senses, like a single beep. A stimulus class is a group of stimuli that share a common element: their form, their timing relative to behavior, or their effect on behavior. If the members look or sound alike, it's a feature class. If they don't, but they still evoke the same response, it's an arbitrary class.
Members get the full lesson video, notes and a 5-question test
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.