What condition is associated with severe deficits in speech sound production?

The correct choice is associated with a condition specifically linked to the production of speech sounds due to issues with the underlying sound system, which is essential for speech. When individuals have phonological process disorder, they often exhibit patterns in their speech where they simplify difficult sounds, making it challenging to accurately produce spoken language. This can lead to significant difficulties in communication as their speech may not be easily understood.

In contrast, a speech sound disorder broadly encompasses various issues related to the articulation of sounds, while an oral motor disorder specifically refers to difficulties with the physical movements needed for speech. Dyslexia, on the other hand, primarily affects reading and language processing rather than the direct production of speech sounds. Understanding these distinctions highlights why phonological process disorder is the most relevant condition associated with severe deficits in the production of speech sounds.