When is Knowledge of Results most beneficial in motor speech treatment?

• A. Early acquisition of a new motor pattern
• B. Always
• C. During retention and generalization phases
• D. When the client has limited insight into errors

Answer: (C)

Knowledge of results is most beneficial during the retention and generalization phases of motor speech learning. In this stage, the goal is to solidify the newly learned motor pattern and ensure it transfers to real-life speaking contexts, such as different words, rate, and conversational situations. Providing knowledge of the outcome helps the learner verify that their production matches the target when external cues are reduced, supporting consolidation of the motor plan and accurate generalization to new tasks. Too much feedback early on can make the learner dependent on external guidance and hinder the development of internal error detection, whereas in retention and generalization the focus is on maintaining and transferring the skill with less reliance on constant feedback. If the learner has limited insight into errors, KR can still help, but the strongest fit for long-term mastery is during retention and generalization.