Which outcome best signals meaningful change in AOS therapy?

• A. Longer utterances with improved grammar but sequencing unclear.
• B. Improved intelligibility and consistent production of longer, more complex utterances with accurate sequencing.
• C. Faster speech rate with preserved accuracy.
• D. Greater variance in pitch across utterances.

Answer: (B)

Meaningful change in AOS therapy shows up when speech becomes easier to understand and can be produced more fluently in longer, more complex forms. The best signal is improved intelligibility together with consistent production of longer utterances that are accurately sequenced. This reflects underlying gains in planning and coordinating the movements needed for speech, not just isolated words or faster speech with errors. If sequencing remains unclear even as utterances grow longer, or if speed increases but accuracy is not maintained, the change isn’t as functional or generalized. Likewise, changes in pitch variability don’t directly indicate better motor planning or sequencing. So the combination of clearer speech (intelligibility) and reliable, accurate sequencing in longer speech best signals meaningful progress.