Script training dose (Braun & Cherney, 2025)

<p dir="ltr"><b>Purpose: </b>Optimal dosage parameters are underspecified for aphasia therapy. This study evaluated effects of small doses of conversational script training in individuals with chronic poststroke aphasia.</p><p dir="ltr"><b>Method: </b>Ten adults with chronic poststroke aphasia completed 2 hr of computerized conversational script training on two consecutive days via AphasiaScripts. Accuracy and rate of production of a trained and an untrained conversational script were probed at three baseline timepoints and various timepoints after the first and second treatment sessions up to 2 weeks posttreatment. Generalization in accuracy of trained script production was evaluated through a live conversational interaction. Mixed-effects linear regression models evaluated changes in accuracy and rate of script production across timepoints.</p><p dir="ltr"><b>Results: </b>Participants showed significantly improved accuracy and rate of trained script production immediately following 1 and 2 hr of treatment. Gains in script production accuracy and rate were maintained up to 1 week posttreatment. Generalization probe production accuracy improved significantly from baseline to immediately posttreatment and 2 weeks posttreatment.</p><p dir="ltr"><b>Conclusions: </b>Improvement in production of trained conversational scripts following 1 and 2 hr of treatment can be documented in individuals with poststroke aphasia. These results provide estimates for the effects of 1 and 2 hr of conversational script training that can be used in future dosage manipulations.</p><p dir="ltr"><b>Supplemental Material S1.</b> Statistical analysis code in a .R file to be used with the open-source statistical analysis software R.</p><p dir="ltr"><b>Supplemental Material S2.</b> Raw data in a .csv file for the oral reading probes used for analysis for Research Questions 1 and 2.</p><p dir="ltr"><b>Supplemental Material S3.</b> Raw data in a .csv file with demographic and standardized testing results.</p><p dir="ltr"><b>Supplemental Material S4.</b> Raw data in a .csv file for the generalization probes used for analysis for Research Question 3.</p><p dir="ltr">Braun, E. J., & Cherney, L. R. (2025). Small-dose behavioral treatment effects: Learning following 2 hours of computer-based conversational script training in individuals with poststroke aphasia. <i>Journal of Speech, Language, and Hearing Research</i><i>, </i><i>68</i>(3), 1075–1091. <a href="https://doi.org/10.1044/2024_JSLHR-24-00326" target="_blank">https://doi.org/10.1044/2024_JSLHR-24-00326</a></p>