Objectives The purpose of this paper is to provide reliable change metrics and assess the test–retest psychometrics of the Sport Concussion Assessment Tool fifth Edition (SCAT5) in a multilingual sample of professional ice hockey players. Methods The SCAT5 was administered to National Hockey League and American Hockey League male professional ice hockey players as part of the 2018 and 2019 season medical evaluations. We extracted data from an existing clinical database of players who were administered two consecutive baseline evaluations and had no intervening concussions to assess psychometric properties (eg, test–retest reliability) and develop reliable change metrics. Results Overall, 1007 players met inclusion criteria. Players were reassessed on average 344.52 (±62.52) days following their first baseline. Test–retest reliability ranged from r=0.3 to r=0.5. Reliable change metrics for Immediate Memory varied considerably dependent on form order. Significant differences were found between English versus non-English language preference on Immediate Memory and Concentration but not Delayed Memory or the modified Balance Error Scoring System (mBESS). Reliable change indices at the 90% CI were: Symptom Severity (5), Total Symptoms (3), Immediate Memory (3-8), Concentration (2), mBESS (5) and Delayed Memory (2-4). Conclusions Our findings highlight the importance of considering form differences and language preference when determining reliable change from baseline on the SCAT5 in male professional hockey players. The relatively modest test–retest reliability of the measures leaves room for improved psychometric properties and increased sensitivity to concussion in future iterations of the SCAT. No data are available. All applicable deidentified group data are presented in the text, tables and online supplemental tables. Individual player data are not available.

中文翻译：

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确定运动脑震荡评估工具第五版（SCAT5）男性职业曲棍球运动员的可靠变化


目标 本文的目的是提供可靠的变化指标，并在职业冰球运动员的多语言样本中评估运动脑震荡评估工具第五版 (SCAT5) 的重测心理测量。方法 作为 2018 和 2019 赛季医学评估的一部分，对国家冰球联盟和美国冰球联盟男性职业冰球运动员进行了 SCAT5。我们从现有的球员临床数据库中提取数据，这些球员接受了两次连续的基线评估，并且没有干预性脑震荡，以评估心理测量特性（例如，重测可靠性）并制定可靠的变化指标。结果 总体而言，1007 名玩家符合入选标准。球员在首次基线后平均 344.52 (±62.52) 天接受重新评估。重测信度范围为 r=0.3 至 r=0.5。即时记忆的可靠变化指标根据表单顺序的不同而有很大差异。英语与非英语语言在即时记忆和注意力方面的偏好存在显着差异，但在延迟记忆或修改后的平衡错误评分系统（mBESS）方面没有显着差异。 90% CI 处的可靠变化指数为：症状严重程度 (5)、总症状 (3)、即时记忆 (3-8)、注意力 (2)、mBESS (5) 和延迟记忆 (2-4)。结论 我们的研究结果强调了在确定男性职业曲棍球运动员 SCAT5 相对于基线的可靠变化时考虑形态差异和语言偏好的重要性。这些措施的重测可靠性相对较低，为 SCAT 未来迭代中改善心理测量特性和提高对脑震荡的敏感性留下了空间。无可用数据。 所有适用的去识别化群体数据均显示在文本、表格和在线补充表格中。个人球员数据不可用。