Cargando…

Comparing subjective and objective evaluations of player performance in Australian Rules football

Player evaluation plays a fundamental role in the decision-making processes of professional sporting organisations. In the Australian Football League, both subjective and objective evaluations of player match performance are commonplace. This study aimed to identify the extent to which performance i...

Descripción completa

Detalles Bibliográficos
Autores principales: McIntosh, Sam, Kovalchik, Stephanie, Robertson, Sam
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6693762/
https://www.ncbi.nlm.nih.gov/pubmed/31412064
http://dx.doi.org/10.1371/journal.pone.0220901
_version_ 1783443733843279872
author McIntosh, Sam
Kovalchik, Stephanie
Robertson, Sam
author_facet McIntosh, Sam
Kovalchik, Stephanie
Robertson, Sam
author_sort McIntosh, Sam
collection PubMed
description Player evaluation plays a fundamental role in the decision-making processes of professional sporting organisations. In the Australian Football League, both subjective and objective evaluations of player match performance are commonplace. This study aimed to identify the extent to which performance indicators can explain subjective ratings of player performance. A secondary aim was to compare subjective and objective ratings of player performance. Inside Football Player Ratings (IFPR) and Australian Football League Player Ratings were collected as subjective and objective evaluations of player performance, respectively, for each player during all 1026 matches throughout the 2013–2017 Australian Football League seasons. Nine common player performance indicators, player role classification, player age and match outcomes were also collected. Standardised linear mixed model and recursive partitioning and regression tree models were undertaken across the whole dataset, as well as separately for each of the seven player roles. The mixed model analysis produced a model associating the performance indicators with IFPR at a root mean square error of 0.98. Random effects accounting for differences between seasons and players ranged by 0.09 and 1.73 IFPR each across the five seasons and 1052 players, respectively. The recursive partitioning and regression tree model explained IFPR exactly in 35.8% of instances, and to within 1.0 IFPR point in 81.0% of instances. When analysed separately by player role, exact explanation varied from 25.2% to 41.7%, and within 1.0 IFPR point from 70.3% to 88.6%. Overall, kicks and handballs were most associated with the IFPR. This study highlights that a select few features account for a majority of the variance when explaining subjective ratings of player performance, and that these vary by player role. Australian Football League organisations should utilise both subjective and objective assessments of performance to gain a better understanding of the differences associated with subjective performance assessment.
format Online
Article
Text
id pubmed-6693762
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-66937622019-08-16 Comparing subjective and objective evaluations of player performance in Australian Rules football McIntosh, Sam Kovalchik, Stephanie Robertson, Sam PLoS One Research Article Player evaluation plays a fundamental role in the decision-making processes of professional sporting organisations. In the Australian Football League, both subjective and objective evaluations of player match performance are commonplace. This study aimed to identify the extent to which performance indicators can explain subjective ratings of player performance. A secondary aim was to compare subjective and objective ratings of player performance. Inside Football Player Ratings (IFPR) and Australian Football League Player Ratings were collected as subjective and objective evaluations of player performance, respectively, for each player during all 1026 matches throughout the 2013–2017 Australian Football League seasons. Nine common player performance indicators, player role classification, player age and match outcomes were also collected. Standardised linear mixed model and recursive partitioning and regression tree models were undertaken across the whole dataset, as well as separately for each of the seven player roles. The mixed model analysis produced a model associating the performance indicators with IFPR at a root mean square error of 0.98. Random effects accounting for differences between seasons and players ranged by 0.09 and 1.73 IFPR each across the five seasons and 1052 players, respectively. The recursive partitioning and regression tree model explained IFPR exactly in 35.8% of instances, and to within 1.0 IFPR point in 81.0% of instances. When analysed separately by player role, exact explanation varied from 25.2% to 41.7%, and within 1.0 IFPR point from 70.3% to 88.6%. Overall, kicks and handballs were most associated with the IFPR. This study highlights that a select few features account for a majority of the variance when explaining subjective ratings of player performance, and that these vary by player role. Australian Football League organisations should utilise both subjective and objective assessments of performance to gain a better understanding of the differences associated with subjective performance assessment. Public Library of Science 2019-08-14 /pmc/articles/PMC6693762/ /pubmed/31412064 http://dx.doi.org/10.1371/journal.pone.0220901 Text en © 2019 McIntosh et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
McIntosh, Sam
Kovalchik, Stephanie
Robertson, Sam
Comparing subjective and objective evaluations of player performance in Australian Rules football
title Comparing subjective and objective evaluations of player performance in Australian Rules football
title_full Comparing subjective and objective evaluations of player performance in Australian Rules football
title_fullStr Comparing subjective and objective evaluations of player performance in Australian Rules football
title_full_unstemmed Comparing subjective and objective evaluations of player performance in Australian Rules football
title_short Comparing subjective and objective evaluations of player performance in Australian Rules football
title_sort comparing subjective and objective evaluations of player performance in australian rules football
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6693762/
https://www.ncbi.nlm.nih.gov/pubmed/31412064
http://dx.doi.org/10.1371/journal.pone.0220901
work_keys_str_mv AT mcintoshsam comparingsubjectiveandobjectiveevaluationsofplayerperformanceinaustralianrulesfootball
AT kovalchikstephanie comparingsubjectiveandobjectiveevaluationsofplayerperformanceinaustralianrulesfootball
AT robertsonsam comparingsubjectiveandobjectiveevaluationsofplayerperformanceinaustralianrulesfootball