A group of stimuli that share common timing in relation to the behavior they precede or follow.

External or internal environmental event(s) that affect an individual’s behavior.

A group of stimuli that share a common function, topography, or temporal relation and have a common effect on a response class (behavior). Hint: Think of the stimulus class as…

A group of stimuli that share physical/topographical features.

A group of stimuli that share a common effect (i.e., function) on a behavior.

A group of stimuli that share an infinite number of possible relations and evoke the same response. 

The difference between formal and feature stimulus class is something that has caused many students a great deal of confusion. That is because they seem the same, unless you look closely and realize they are not. PTB co-founder Dana Meller explains. Refer to 5th Edition Task List Section B-2: Define and provide examples of stimulus and stimulus class.

An elaborate and always changing universe of stimulus conditions and events that are internal and external to an individual.

PTB co-founder Dana Meller discusses the term environment in connection with a term defined as a physical event that influences how individuals interact with the world around them Refer to BCBA® Task List (5th ed.) Section B-2: Define and provide examples of stimulus and stimulus class.

Test your knowledge of concepts and principles as PTB co-founder Dana Meller reviews a question about identifying a specific type of stimulus class, and the features associated with the three main stimulus class variations. Refer to BCBA® Task List (5th ed.) Section B-2: Define and provide examples of stimulus and stimulus class.