Objective
To investigate the effects of small group speech therapy consisting of two children in aspects of language and social development and identify powerful predictors for maximal therapeutic gains of two-person small-group speech therapy (2-SST).
Methods
We retrospectively reviewed the medical records of 51 children, who had participated in 2-SST. Language and social abilities of children were assessed using multiple scales at initial and follow-up visits after participating in 2-SST program. Receptive and expressive language were measured using the Preschool Receptive-Expressive Language Scale and the Receptive-Expressive Vocabulary Test, while social abilities were assessed with the Social Maturity Scale.
Results
Participants in the 2-SST showed significant improvements in all categories of receptive/ expressive language and social abilities. Multivariable linear regression analysis revealed that the same diagnosis and baseline receptive language ability difference and intellectual ability difference from paired-child were powerful predictors of improvement in receptive language ability. Younger age (≤5 years) was a powerful predictor of improvement in expressive language ability. Older age (>5 years) was an independent predictor of improvement in social ability.
Conclusion
The 2-SST can be an appropriate delivery model to improve language and social skills with advantages of both individual and group speech therapy. For maximal therapeutic gains of 2-SST, same diagnosis, similar language and cognitive level with paired-child, and age should be considered depending on the more specific goals of treatment.