Assess students' ability to create a complete randomized controlled trial protocol to evaluate a wearable sensor–guided gait retraining program for reducing running-related injuries in collegiate cross-country athletes (ages 18–24). The protocol must include clear primary and secondary hypotheses; precise inclusion/exclusion criteria; detailed intervention and control conditions (sensor type, real-time or delayed feedback, training dose, adherence monitoring); primary and secondary outcome measures (injury definitions, surveillance methods, biomechanical and patient-reported outcomes, follow-up duration); sample size calculation with assumptions and effect size rationale; randomization and allocation concealment methods; blinding strategies; a statistical analysis plan (primary analysis, handling of missing data, intention-to-treat, subgroup/sensitivity analyses); and ethical considerations (informed consent, safety monitoring, data privacy). Responses should justify methodological choices and address feasibility for collegiate settings.