Final answer:
The behavior of repeating words with one-on-one correspondence relates to speech and language development in individuals with ASD, which is essential since communication abilities can be heavily influenced by the disorder.
Step-by-step explanation:
The behavior described in the question is indicative of speech and language development in individuals with Autism Spectrum Disorder (ASD). When a patient with ASD repeats the word that an adult said with one-on-one correspondence, it demonstrates their ability to process and imitate language, a core aspect of language development.
Speech and language therapy often employs strategies that focus on repetition to build language skills in children and adults with ASD. This area of development is crucial because communication abilities can be significantly affected by ASD, and improving language skills is often a focus in treatment and behavioral interventions.