Final answer:
Stimulus discrimination and stimulus generalization are opposite processes involved in triggering learned responses. In the case of Randall, his behavior of taking off his shoes only at his grandmother's home suggests stimulus discrimination.
Step-by-step explanation:
Stimulus discrimination and stimulus generalization are two processes involved in determining which stimuli will trigger learned responses. Stimulus discrimination occurs when an organism learns to respond differently to various similar stimuli, only demonstrating the conditioned response to the conditioned stimulus.
On the other hand, stimulus generalization occurs when an organism responds to similar stimuli that are not exactly the conditioned stimulus. In the case of Randall, his behavior of taking off his shoes is specific to his grandmother's home, which suggests stimulus discrimination. He is able to discriminate between the stimuli of entering his grandmother's home and other houses.