Which type of errors in verbal apraxia can include omissions of sounds?

The correct choice reflects the nature of deletions in verbal apraxia, where a speaker may inadvertently omit sounds or syllables in their speech. In the context of verbal apraxia, this condition affects the ability to plan and coordinate the movements required for speech production. As a result, individuals may struggle to articulate words correctly, leading to the omission of certain sounds that are essential for accurate pronunciation.

For example, a person might intend to say "spoon" but may produce "oon" instead, effectively dropping the initial consonant sound. This type of error is distinct because it focuses specifically on the absence of sounds, making it a clear case of deletion.

In contrast, other error types do not involve omissions. Substitutions might see an individual replace one sound with another, while repetitions involve the unnecessary repetition of sounds or syllables. Transpositions occur when sounds within a word are switched, neither of which aligns with the concept of omitting sounds entirely. Therefore, the deletion of sounds stands out as a specific error type that is characteristic of verbal apraxia.