Which assessment task is most likely to reveal sequencing errors in AOS?

• A. Repeating single syllables.
• B. Producing longer, more complex words and phrases.
• C. Reading aloud from a script with familiar sentences.
• D. Singing a well-known tune.

Answer: (B)

Sequencing errors in apraxia of speech happen when the brain struggles to plan and order multiple articulatory movements. Longer, more complex words and phrases demand more planning steps and tighter timing, so small planning glitches are more likely to show up as the sequence unfolds. Simple tasks like repeating single syllables use shorter, highly practiced motor chunks, making sequencing problems less likely to be revealed. Reading aloud from familiar sentences taps into well-practiced sequences, reducing planning demands, and singing a known tune can be aided by melodic and rhythmic cues that mask sequencing difficulties. Because of these factors, longer, more complex productions are most likely to reveal sequencing errors in AOS.