Interrater Reliability of Videotaped Performance on the Functional Movement Screen Using the 100-Point Scoring Scale

Abstract

ABSTRACT The purpose of this article was to determine the interrater reli-ability of the 100-point Functional Movement Screen (FMS) scoring scale. Thirty middle school-age students participated in this study. Each participant was videotaped performing the 7 movements of the FMS and scores were obtained. The vid-eos were then analyzed by 2 separate raters using the new 100-point scoring system. Interrater reliability was calculated for each movement and the composite score using the in-traclass correlation coeffi cients model. Interrater reliability for the individual components of the 100-point FMS scale ranged between 0.91 and 1.00. Composite interrater reliabil-ity was 0.99. The left lunge component of the FMS scale had the lowest interrater reliability at 0.91, whereas the shoulder mobility, active straight-leg raise, and trunk stability push up had perfect reliability at 1.00. Results of this study suggest the proposed 100-point FMS scale can be scored with a high level of interrater reliability in trained raters.