The issue of Relative Age Effect (RAE) focuses on the causes and consequences of the failure to respect development patterns of individuals in relation to their success, especially in sports. This study aims to determine whether the influence of the RAE can be proven in the Czech youth ice hockey league (U15) (n=744). A Chi-Square test (χ2) has shown that the influence in the whole investigated group cannot be rejected (χ2=25.34, p<0.01, w=0.11). The RAE can be rejected in the group of players (n=78) from the three best teams of the competition (χ2=3.09, p=0.38, w=0.11); the influence of the RAE can also be rejected in players (n=75) from the three worst teams (χ2=0.53, p=0.91, w=0.05). The assessment of RAE on playing positions has shown that the RAE can be rejected (χ2=7.31, p=0.06, w=0.22) in the most productive forwards (n=50) as well as in the least productive forwards (n=50) (χ2=0.48, p=0.92, w=0.06). The RAE is rejected in the group of the most productive defensemen (n=50) (χ2=1.71, p=0.11, w=0.11), and in the group of the least productive defensemen (n=50) (χ2=4.15, p=0.25, w=0.17). The RAE cannot be rejected (χ2=8.88, p=0.03, w=0.35) in the group of best goaltenders (n=24); the RAE is rejected in the group of the worst goaltenders (n=24) (χ2=1.5, p=0.68, w=0.14). Although the results have proven that the RAE cannot be rejected in the entire research group, there is no evidence of its influence (with the exception of the best goaltenders) in individual playing positions.

中文翻译：

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相对年龄效应对捷克青年冰球联盟的影响

相对年龄效应（RAE）问题着重于未能尊重个人的发展模式与成功有关的原因和后果，尤其是在体育运动中。这项研究旨在确定RAE的影响是否可以在捷克青年冰球联盟（U15）（n = 744）中得到证明。卡方检验（χ2）表明，不能拒绝整个研究组的影响（χ2= 25.34，p <0.01，w = 0.11）。RAE可以在比赛的三支最佳队伍中被淘汰（n = 78）（χ2= 3.09，p = 0.38，w = 0.11）；RAE的影响也可以被三支最差球队（χ2= 0.53，p = 0.91，w = 0.05）的球员（n = 75）拒绝。在比赛位置上对RAE的评估表明，可以拒绝RAE（χ2= 7.31，p = 0.06，w = 0）。22）在生产力最高的前瞻（n = 50）和生产力最低的前瞻（n = 50）中（χ2= 0.48，p = 0.92，w = 0.06）。在生产效率最高的辩护人组（n = 50）（χ2= 1.71，p = 0.11，w = 0.11）和生产效率最低的辩护人组（n = 50）（χ2= 4.15， p ＝ 0.25，w ＝ 0.17）。在最佳守门员组（n = 24）中，RAE不能被拒绝（χ2= 8.88，p = 0.03，w = 0.35）；RAE在最差守门员组（n = 24）中被拒绝（χ2= 1.5，p = 0.68，w = 0.14）。尽管结果证明了RAE不能在整个研究小组中被拒绝，但没有证据表明RAE在单个比赛位置上会产生影响（最佳射手除外）。w = 0.11），而在生产效率最低的辩护人组中（n = 50）（χ2= 4.15，p = 0.25，w = 0.17）。在最佳守门员组（n = 24）中，RAE不能被拒绝（χ2= 8.88，p = 0.03，w = 0.35）；RAE在最差守门员组（n = 24）中被拒绝（χ2= 1.5，p = 0.68，w = 0.14）。尽管结果证明了RAE不能在整个研究小组中被拒绝，但没有证据表明RAE在单个比赛位置上会产生影响（最佳射手除外）。w = 0.11），而在生产效率最低的辩护人组中（n = 50）（χ2= 4.15，p = 0.25，w = 0.17）。在最佳守门员组（n = 24）中，RAE不能被拒绝（χ2= 8.88，p = 0.03，w = 0.35）；RAE在最差守门员组（n = 24）中被拒绝（χ2= 1.5，p = 0.68，w = 0.14）。尽管结果证明了RAE不能在整个研究小组中被拒绝，但没有证据表明RAE在单个比赛位置上会产生影响（最佳射手除外）。