技能评分项目裁判员评分结果的多面Rasch模型分析——项目反应理论在体育运动领域的应用

Multi-Faceted Rasch Analysis of Result of Skill Referees of Sport Events ——Application of item response theory in sport filed

技能类运动项目以裁判员评分作为评定比赛成绩的主要因素,对裁判员评分分析可以得到许多有价值的信息。研究使用多面Rasch模型对伦敦奥运会男子10米台跳水决赛结果进行分析。分析结果表明:运动员能力排序与奥运会比赛结果有差异;比赛中运动员之间状态起伏规律有差异;裁判员之间评分宽严程度一致,但对个别评分等级把握不准确;规则中的动作难度系数与Rasch分析的动作难度之间有差异。Rasch分析得到的信息对裁判选拔、规则修订、运动员备战具有参考价值。

This paper analyzes the results of Men~ 10 meter platform diving at the London Olympic Games by using the method of Multi - Faceted Rasch Model. The results indicate that there are differences between the ranks of athletes＇ ability and the result of Olympic Games. The athletes^forms are unstable during competitions. The referees abide by the same judging standards but they are subject to inaccuracy in some grading levels. There is a certain gap between the dif- ficulty degree and that of the Rasch analysis. The data from Rasch analysis can provide references for the selection of referees, rule amendment and athletes＇ preparation for competitions.