Final answer:
The strength of the conditioned response decreases as generalization test stimuli become less similar to the conditioned stimulus.
Step-by-step explanation:
When generalization test stimuli become less similar to the conditioned stimulus (CS), the strength of the conditioned response (CR) decreases. The concept of stimulus generalization tells us that an organism will often respond to stimuli that are similar to the original conditioned stimulus with the conditioned response. However, as the stimuli presented become increasingly dissimilar from the conditioned stimulus, the organism's response becomes weaker. This is consistent with the principles of classical conditioning, where a conditioned response is only strong and consistent when the conditioned stimulus closely resembles the stimulus used during the acquisition phase of learning. An example of this would be Pavlov's dogs salivating less to tones that differ more from the tone paired with food during training.