12/10/2023
A question that many SLPs get is: “How long will it take to see improvements in my child’s speech?” Often, there’s no simple answer since there are MANY variables involved! Many relate to the child, themselves (e.g., how severe is the disorder, how resilient is the child to corrections and cueing, how much practice is there outside of the therapy room). However, one variable we, as SLPs, CAN control relates to how closely we follow the dosage, intensity, and duration of a specific treatment approach for phonological disorders. There’s a great paper written by A. Lynn Williams (2012) that talks about intensity and treatment variables using multiple oppositions and minimal pairs. A summary of the intensity data revealed:
🌟We need to aim for a dosage of at least 50 trials per session.
🌟If the disorder is severe, the suggested dosage is at least 70 trials per session.
🌟We need at least 30 sessions (which are 30 minutes in length) to be effective. Optimally 2 sessions per week yield the fastest gains.
🌟 If the disorder is more severe, it may take more than 40 sessions to see improvement.
🌟Interspersing focused practice and naturalistic play at a 2:1 ratio is important throughout intervention. Practice during play helps bridge the gap to generalization.
Treatment fidelity matters in our practice!
Source: A. Lynn Williams (2012). Intensity in phonological intervention: Is there a prescribed amount? International Journal of Speech-Language Pathology, 14:5, 456-461.