2020, Volume 12, Issue 2

The relative age effect in FIFA U-17 World Cup: The role of the playing position and the continent



Ali Işın1, Tuba Melekoğlu1

1Department of Coaching Education, Faculty of Sport Sciences, Akdeniz University


Author for correspondence: Ali Işın; Department of Coaching Education, Faculty of Sport Sciences, Akdeniz University; email: isin_ali@ hotmail.com

DOI: 10.29359/BJHPA.12.2.02

Full text

Abstract

Background: The aim of this study was to examine the relative age effect of the countries which attended the 2017 FIFA U-17 World Cup and to research the relative age effect in terms of continents and the players’ position.

Material and methods: 504 male football players from 24 countries which participated in the U-17 World Cup in India in 2017 were included in the study. Football players’ dates of birth were grouped into periods of three months in quarter years (Q): Q1 – January-March, Q2 – April-June, Q3 – July-September, Q4 – October-December. To study the sub-group differences of the relative age effect, meaningful chi-square (χ²) values were
followed by calculating the odds ratio and %95 confidence intervals. To determine the effect size, Cramer’s V was used.

Results: The relative age effect was based on quarter years’ distributions. Significant differences were found among age quartiles for all teams in FIFA U-17 World Cup. However, when the variables analysed were according to the continents, the relative age effect disappeared in Africa, Asia and Oceania.

Conclusions: In the comparison of the players’ continents, a relative age effect was observed in Europe, North America, and South America. When the players’ positions are compared, a relative age effect was found in defenders, midfielders and forward players.


Key words: relative age effect, football, continent, World Cup, playing position


Cite this article as:

AMA:

Işın A, Melekoğlu T. The relative age effect in FIFA U-17 World Cup: The role of the playing position and the continent. Balt J Health Phys Activ. 2020;12(2):12-18. doi:10.29359/BJHPA.12.2.02

APA:

Işın, A.., & Melekoğlu, T. (2020). The relative age effect in FIFA U-17 World Cup: The role of the playing position and the continent. Balt J Health Phys Activ, 12(2), 12-18. https://doi.org/10.29359/BJHPA.12.2.02

Chicago:

Işın, Ali , Melekoğlu Tuba. 2020. "The relative age effect in FIFA U-17 World Cup: The role of the playing position and the continent". Balt J Health Phys Activ 12 (2): 12-18. doi:10.29359/BJHPA.12.2.02

Harvard:

Işın, A.., and Melekoğlu, T. (2020). The relative age effect in FIFA U-17 World Cup: The role of the playing position and the continent. Balt J Health Phys Activ, 12(2), pp.12-18. https://doi.org/10.29359/BJHPA.12.2.02

MLA:

Işın, A.., and Melekoğlu, T. "The relative age effect in FIFA U-17 World Cup: The role of the playing position and the continent." Balt J Health Phys Activ, vol. 12, no. 2, 2020, pp. 12-18. doi:10.29359/BJHPA.12.2.02

Vancouver:

Işın A, Melekoğlu T. The relative age effect in FIFA U-17 World Cup: The role of the playing position and the continent. Balt J Health Phys Activ 2020; 12(2): 12-18. Available from: doi:10.29359/BJHPA.12.2.02