Abstract
This paper details the reliability study for a computerised lapsed and real-time application for rugby union. The lapsed-time application was written in order to capture match details post event and the real-time application was developed to capture match detail while the match was in progress. The reliability test was conducted using percentage error, which was deemed the most appropriate for this data. For the purpose of the current investigation, a percentage error of under 5% was deemed to be acceptable Three tests were undertaken by the same operator (intra-observer) and the results were presented and discussed. The system was found to be reliable with both systems, but there were some performance indicators that had a percentage error of more than 5%. It was suggested that the majority of high percentage errors stemmed from poor match coverage or poor communication and ambiguity from the referee. Finally, it was noted that in any form of notation there is a trade off between the time taken to notate and the reliability of the captured data. The developed system was shown to be reliable and it would be possible to conclude, that as the percentage differences were so low, the system was reliable.
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