Generic extension is an instance of verbal behavior in which the response form is a previously learned one and the stimulus is a novel one with all of the relevant features of the stimulus that previously controlled the response. Features irrelevant to generic extension include the type of elementary verbal relationship between the stimulus and the response, the formal and dynamic characteristics of the response and stimulus, and whether or not the current response is followed by reinforcement.
An instance of verbal behavior with the following features:
The response form must be a previously learned one
The stimulus must be novel
The novel stimulus must have all of the relevant features of the stimulus that previously controlled the response
The type of elementary verbal relationship between the stimulus and the response
Formal and dynamic characteristics of the response
Formal or dynamic characteristics of the stimulus
Whether or not the current response is followed by reinforcement