ABSTRACT
Objective
To derive minimum detectable change (MDC) across individual Vestibular-Ocular Motor Screening (VOMS) items and VOMS overall score in 17–25 years old collegiate athletes and to examine false positive rates.
Method
Participants (n = 378) completed VOMS pre-season for two consecutive years. MDC was identified for individual VOMS symptom items and NPC distance (cm). Both total and change methods of VOMS scoring were included in analysis.
Results
Regarding total scoring, MDC for ocular VOMS symptom items was 1 and MDC for vestibular VOMS symptoms items was 2. MDC for NPC was 4 cm and for VOMS overall score was 10. Regarding change scoring, MDC for each VOMS symptom item was 1, and for VOMS overall score was 8. False positives ranged from 5.3% to 15.9%.
Conclusions
This study presents MDCs for each VOMS item and overall VOMS score, using total and change scoring. These values can be considered true change outside measurement error with 95% confidence in a 17–25 year old collegiate athlete population.
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Acknowledgments
This research has not been presented. This research was funded by the NCAA/DoD CARE Consortium.
Conflicts of interest/competing interests
Dr Kontos and Dr Collins receive research funding from the CDC, Department of Defense (DoD), National Collegiate Athletic Association (NCAA), National Football League (NFL), and National Institutes for Health (NIH) through the University of Pittsburgh and royalties from APA Books. Dr Collins was previously a co-developer and shareholder of ImPACT Applications, Inc.