According to Wambaugh's AOS Dx, if most features in category C are present, the probability of AOS is which?

• A. High probability
• B. Moderate probability
• C. Low probability
• D. No AOS

Answer: (C)

The question tests how Wambaugh's AOS Dx uses feature groups to judge the likelihood of apraxia of speech. In this framework, features are organized by how diagnostic they are for AOS. If most of what you observe falls into a group that is not strongly tied to AOS, the overall probability that AOS is present drops.

Category C contains features that are less specific to AOS and can appear in other motor speech disorders or language-related issues. When these features dominate the pattern, the presentation aligns more with conditions other than AOS, so the probability of AOS is low. There can still be some overlap, but the dominant pattern points away from AOS.