Intrinsic judgment error in men’s championship world surf league: WSL 2021
Introduction: Surfers’ performances are subjectively ranked by 5 judges. Low reliability and validity in judgment may lead to preventable errors and unfair scores. Objective: The aims of the present study is to describe the judgment error for each wave surfed in world surf league (WSL) championsh...
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FEADEF
2025-02-01
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| Series: | Retos: Nuevas Tendencias en Educación Física, Deportes y Recreación |
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| Online Access: | https://185.79.129.203/index.php/retos/article/view/106821 |
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| author | Tony Meireles Santos Lucas Eduardo Rodrigues Santos Ítalo Vinicius Cayque Brietzke Lucas Camilo Pereira Paulo Henrique Melo Thaiene Camila Beltrão Moura Taddeo De Negri Hassan Mohamed Elsangedy Flávio Oliveira Pires |
| author_facet | Tony Meireles Santos Lucas Eduardo Rodrigues Santos Ítalo Vinicius Cayque Brietzke Lucas Camilo Pereira Paulo Henrique Melo Thaiene Camila Beltrão Moura Taddeo De Negri Hassan Mohamed Elsangedy Flávio Oliveira Pires |
| author_sort | Tony Meireles Santos |
| collection | DOAJ |
| description |
Introduction: Surfers’ performances are subjectively ranked by 5 judges. Low reliability and validity in judgment may lead to preventable errors and unfair scores.
Objective: The aims of the present study is to describe the judgment error for each wave surfed in world surf league (WSL) championship tour of 2021, establish between-judge reliability, and establish judgment validity comparing each judge score with the final control score of the wave.
Methodology: To describe the judgment error, we analyzed the available WSL data related to the 2021 Men’s Championship Tour (4,095 waves; 20,475 scores).
Results: We found an inverted ‘U’-shaped pattern for the judgment error score vs. control score, explained by a quadratic regression model (R = 0.52; SEE = 0.10). The reliability produced an excellent intraclass correlation coefficient (CI95% = 0.97, 1.00), with a between judge (typical) error of 0.15. Validity analyses indicated a minimal real difference of 0.49 in the sum of two waves between the surfers for having 95% certainty for the heat winner.
Conclusion: We recommend WSL incorporate intrinsic judgment errors to increase fairness and trust in the WSL championship tour.
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| format | Article |
| id | doaj-art-e3dc4a6824e04146be79b6f99b4ba997 |
| institution | Kabale University |
| issn | 1579-1726 1988-2041 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | FEADEF |
| record_format | Article |
| series | Retos: Nuevas Tendencias en Educación Física, Deportes y Recreación |
| spelling | doaj-art-e3dc4a6824e04146be79b6f99b4ba9972025-02-04T17:12:51ZengFEADEFRetos: Nuevas Tendencias en Educación Física, Deportes y Recreación1579-17261988-20412025-02-016410.47197/retos.v64.106821Intrinsic judgment error in men’s championship world surf league: WSL 2021Tony Meireles Santos0Lucas Eduardo Rodrigues Santos1Ítalo Vinicius2Cayque Brietzke3Lucas Camilo Pereira4Paulo Henrique Melo5Thaiene Camila Beltrão Moura6Taddeo De Negri7Hassan Mohamed Elsangedy8Flávio Oliveira Pires9Federal University of PernambucoFederal University of PernambucoUniversity of São PauloUniversity of São PauloFederal University of Rio Grande do NorteFederal University of PernambucoFederal University of PernambucoDigisport University Research SchoolFederal University of Rio Grande do NorteUniversity of São Paulo Introduction: Surfers’ performances are subjectively ranked by 5 judges. Low reliability and validity in judgment may lead to preventable errors and unfair scores. Objective: The aims of the present study is to describe the judgment error for each wave surfed in world surf league (WSL) championship tour of 2021, establish between-judge reliability, and establish judgment validity comparing each judge score with the final control score of the wave. Methodology: To describe the judgment error, we analyzed the available WSL data related to the 2021 Men’s Championship Tour (4,095 waves; 20,475 scores). Results: We found an inverted ‘U’-shaped pattern for the judgment error score vs. control score, explained by a quadratic regression model (R = 0.52; SEE = 0.10). The reliability produced an excellent intraclass correlation coefficient (CI95% = 0.97, 1.00), with a between judge (typical) error of 0.15. Validity analyses indicated a minimal real difference of 0.49 in the sum of two waves between the surfers for having 95% certainty for the heat winner. Conclusion: We recommend WSL incorporate intrinsic judgment errors to increase fairness and trust in the WSL championship tour. https://185.79.129.203/index.php/retos/article/view/106821ReliabilityValiditySurfingJudgmentFair game |
| spellingShingle | Tony Meireles Santos Lucas Eduardo Rodrigues Santos Ítalo Vinicius Cayque Brietzke Lucas Camilo Pereira Paulo Henrique Melo Thaiene Camila Beltrão Moura Taddeo De Negri Hassan Mohamed Elsangedy Flávio Oliveira Pires Intrinsic judgment error in men’s championship world surf league: WSL 2021 Retos: Nuevas Tendencias en Educación Física, Deportes y Recreación Reliability Validity Surfing Judgment Fair game |
| title | Intrinsic judgment error in men’s championship world surf league: WSL 2021 |
| title_full | Intrinsic judgment error in men’s championship world surf league: WSL 2021 |
| title_fullStr | Intrinsic judgment error in men’s championship world surf league: WSL 2021 |
| title_full_unstemmed | Intrinsic judgment error in men’s championship world surf league: WSL 2021 |
| title_short | Intrinsic judgment error in men’s championship world surf league: WSL 2021 |
| title_sort | intrinsic judgment error in men s championship world surf league wsl 2021 |
| topic | Reliability Validity Surfing Judgment Fair game |
| url | https://185.79.129.203/index.php/retos/article/view/106821 |
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