A person attacked by a fierce dog develops a fear of all dogs. This best illustrates

Stimulus generalization

Explanation: Stimulus generalization can be simply refered to as the tendency of an individual to have the same response or have thesame reaction to a new situation or stimuli thesame way he or she had reacted or responded to a similar situation in the past. It is a form of classical conditioning.

The person's development of fear of dogs best illustrates stimulus generalization.

Stimulus generalization.

Explanation:

Stimulus generalization is one of the important aspect to understand in classical conditioning. And the concept of Stimulus generalization can simply be explain as follows; when someone or something is conditioned or trained to respond to a particular stimuli in a specific way then, that person or thing respond to a familiar stimulus in the same way, in Psychology we say that this is Stimulus generalization.

The fact that the person was attacked by a fierce dog made the person to generalize 'fear' to all dogs.