Inter-operator reliability of VO SPORTS™

The purpose of this study was to measure the degree of inter-observer reliability for the sports analysis company VO SPORTS™. The football match corresponding to the 2014 World Cup final was the sample for the study. Data was collected from 28 players, including the actions of the goalkeepers and the replaced players during the match.

The values of the kappa index, the standardized typical error and the intra-class correlation coefficient were used for the statistical analysis. 

Collective Data

Individual Data

The main goal of this study was to verify inter-operator reliability for VO SPORTS™ sports analysis company.  The results show high level of reliability with regard to inter-operator analysis, as can be seen in the high values of intra-class correlation (both at the individual and collective level) and the small standardized typical error, being similar to those referenced in previous reliability studies on observational software for football (Liu et al., 2013).

This study adds an innovative element of analysis as the evaluation was carried out not only at the collective level but also at the individual level.

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