Master study protocol and published manuscript detailing study plan. Analysis plan is included in both documents (section 11 "Analysis Plan" in protocol; section "Data analysis plan" in manuscript).
McAllister, T., Preston, J. L., Hitchcock, E. R., & Hill, J. (2020). Protocol for Correcting Residual Errors with
Spectral, ULtrasound, Traditional Speech therapy Randomized Controlled Trial (C-RESULTS RCT). *BMC Pediatrics, 20:* 66. DOI: https://doi.org/10.1186/s12887-020-1941-5