Final answer:
Stuttering is a speech rhythm disorder characterized by repeated or prolonged sounds, syllables, or words.
Step-by-step explanation:
The communication disorder characterized by repeated or prolonged sounds, syllables, or words is stuttering.
Stuttering is a speech rhythm disorder that commonly affects the flow and fluency of speech. It often involves the repetition of sounds, syllables, or words, as well as prolonged sounds.
For example, a person who stutters may say, "I-I-I want to go-g-g-g-g-g to the park."