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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Geographical Variations in the Interaction of Relative Age Effects in Youth and Adult Elite Soccer
|
|---|---|
| Published in |
Frontiers in Psychology, March 2017
|
| DOI | 10.3389/fpsyg.2017.00278 |
| Pubmed ID | |
| Authors |
Christina Steingröver, Nick Wattie, Joseph Baker, Werner F. Helsen, Jörg Schorer |
| Abstract |
Selection biases based on the use of cut-off dates and the timing of athletes' birthdates have been termed relative age effects. These effects have been shown to differentially affect individuals involved in sport. For example, young male soccer players born early in their age group are overrepresented in elite teams while studies in adult soccer indicated potential carry-over effects from talent development systems. This two-study approach focuses on the processes within multi-year age groups in youth and adult elite soccer and on the role of players' age position within the age band with regard to players' birth year and birth month. Study 1 tests for an interaction of two different types of relative age effects among data from participants in the last five Under-17 FIFA World Cups (2007-2015). Analyses revealed a significant global within-year effect and varying birthdate distributions were found between confederations. Even stronger effects were found for constituent year effects. For the total sample, a multi-way frequency analysis (MFA) revealed an interaction with a pattern of a stronger within-year effect for the younger year group. This study highlights the need to consider interactions between different types of age effects. The main aim of Study 2 was to test for carry-over effects from previously found constituent year effects among players participating in the 2014 soccer World Cup and, therefore, to test for long-term effects of age grouping structures used during earlier stages of talent development. A secondary purpose of this study was to replicate findings on the existence of within-year effects and to test whether effects vary between continental confederations. No significant interaction between constituent year and within-year effects was shown by the MFA among the World Cup sample and previous findings on varying within-year effects were replicated. Results indicate that long-term effects of age grouping structures in earlier high-level talent development structures exist. |
X Demographics
The data shown below were collected from the profiles of 8 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Portugal | 2 | 25% |
| Canada | 2 | 25% |
| United Kingdom | 1 | 13% |
| Australia | 1 | 13% |
| Brazil | 1 | 13% |
| Unknown | 1 | 13% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 4 | 50% |
| Scientists | 4 | 50% |
Mendeley readers
The data shown below were compiled from readership statistics for 75 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Spain | 1 | 1% |
| Unknown | 74 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 12 | 16% |
| Student > Bachelor | 10 | 13% |
| Student > Master | 9 | 12% |
| Student > Postgraduate | 4 | 5% |
| Student > Doctoral Student | 3 | 4% |
| Other | 11 | 15% |
| Unknown | 26 | 35% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 34 | 45% |
| Medicine and Dentistry | 3 | 4% |
| Nursing and Health Professions | 2 | 3% |
| Psychology | 2 | 3% |
| Business, Management and Accounting | 1 | 1% |
| Other | 5 | 7% |
| Unknown | 28 | 37% |
Attention Score in Context
This research output has an Altmetric Attention Score of 6. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 March 2017.
All research outputs
#5,618,007
of 22,958,253 outputs
Outputs from Frontiers in Psychology
#8,036
of 30,112 outputs
Outputs of similar age
#90,348
of 307,995 outputs
Outputs of similar age from Frontiers in Psychology
#219
of 536 outputs
Altmetric has tracked 22,958,253 research outputs across all sources so far. Compared to these this one has done well and is in the 75th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 30,112 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 12.5. This one has gotten more attention than average, scoring higher than 73% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 307,995 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 70% of its contemporaries.
We're also able to compare this research output to 536 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 58% of its contemporaries.