Human Performance Research Centre, Faculty of Health, University of Technology Sydney, Australia.
High Performance Department, Rugby Australia, Australia.
J Sci Med Sport. 2019 Jun;22(6):729-734. doi: 10.1016/j.jsams.2018.12.011. Epub 2018 Dec 21.
To investigate the construct and discriminant validity of a video-based decision-making assessment for talent identification in youth soccer.
Observational study.
A total of 328 academy youth soccer players (tier one, tier two, and tier three) from three developmental stages (late childhood, early adolescence, and mid-adolescence) participated in this study. The control group consisted of 59 youth athletes with no soccer experience in the last five years. Players completed a video-based decision-making assessment on an iPad, with response accuracy and response time recorded for various attacking situations (2 vs. 1, 3 vs. 1, 3 vs. 2, 4 vs. 3, and 5 vs. 3).
The video-based decision-making assessment showed some construct validity. Response times were significantly faster in early and mid-adolescent players when compared to those in the late childhood group. Furthermore, an overall decline in decision-making performance (i.e. decrease in response accuracy and increase in response time) was observed from the 2 vs. 1 to the 4 vs. 3 situations. The video-based decision-making assessment lacked discriminant validity as minimal differences between academies were evident for response accuracy and response time. Only response accuracy was able to discriminate youth academy soccer players from the control group to some extent.
Coaches and sporting professionals should apply caution when interpreting data from practical, video-based decision-making assessments. There is currently limited conclusive evidence supporting the effectiveness of these assessments for talent identification.
研究一种基于视频的决策评估方法在青少年足球人才选拔中的结构和判别效度。
观察性研究。
共有来自三个发展阶段（儿童后期、青少年早期和青少年中期）的 328 名学院青年足球运动员（一级、二级和三级）参与了这项研究。对照组由 59 名在过去五年中没有足球经验的青年运动员组成。球员们在 iPad 上完成了基于视频的决策评估，记录了各种进攻情况下（2 对 1、3 对 1、3 对 2、4 对 3 和 5 对 3）的反应准确性和反应时间。
基于视频的决策评估显示出一定的结构效度。与儿童后期组相比，青少年早期和中期的球员反应时间明显更快。此外，从 2 对 1 到 4 对 3 的情况，观察到决策表现整体下降（即反应准确性下降，反应时间增加）。基于视频的决策评估缺乏判别效度，因为各个学院之间的反应准确性和反应时间差异很小。只有反应准确性在一定程度上能够将青年足球学院球员与对照组区分开来。
教练和体育专业人士在解释基于实践的基于视频的决策评估数据时应谨慎。目前，这些评估方法在人才选拔方面的有效性还没有确凿的证据支持。
