University of Texas at Arlington, Box 19259, 113 Maverick Activities Center, Arlington, TX 76102, USA.
J Athl Train. 2013 Jul-Aug;48(4):506-11. doi: 10.4085/1062-6050-48.3.09. Epub 2013 May 31.
Computerized neuropsychological testing is commonly used in the assessment and management of sport-related concussion. Even though computerized testing is widespread, psychometric evidence for test-retest reliability is somewhat limited. Additional evidence for test-retest reliability is needed to optimize clinical decision making after concussion.
To document test-retest reliability for a commercially available computerized neuropsychological test battery (ImPACT) using 2 different clinically relevant time intervals.
Cross-sectional study.
Two research laboratories.
Group 1 (n = 46) consisted of 25 men and 21 women (age = 22.4 ± 1.89 years). Group 2 (n = 45) consisted of 17 men and 28 women (age = 20.9 ± 1.72 years).
INTERVENTION(S): Both groups completed ImPACT forms 1, 2, and 3, which were delivered sequentially either at 1-week intervals (group 1) or at baseline, day 45, and day 50 (group 2). Group 2 also completed the Green Word Memory Test (WMT) as a measure of effort.
Intraclass correlation coefficients (ICCs) were calculated for the composite scores of ImPACT between time points. Repeated-measures analysis of variance was used to evaluate changes in ImPACT and WMT results over time.
The ICC values for group 1 ranged from 0.26 to 0.88 for the 4 ImPACT composite scores. The ICC values for group 2 ranged from 0.37 to 0.76. In group 1, ImPACT classified 37.0% and 46.0% of healthy participants as impaired at time points 2 and 3, respectively. In group 2, ImPACT classified 22.2% and 28.9% of healthy participants as impaired at time points 2 and 3, respectively.
We found variable test-retest reliability for ImPACT metrics. Visual motor speed and reaction time demonstrated greater reliability than verbal and visual memory. Our current data support a multifaceted approach to concussion assessment using clinical examinations, symptom reports, cognitive testing, and balance assessment.
计算机化神经心理学测试常用于评估和管理与运动相关的脑震荡。尽管计算机化测试已经广泛应用，但测试-再测试可靠性的心理测量学证据仍有些局限。在脑震荡后优化临床决策需要更多关于测试-再测试可靠性的证据。
使用 2 个不同的临床相关时间间隔记录商业化的计算机化神经心理学测试组合（ImPACT）的测试-再测试可靠性。
横断面研究。
两个研究实验室。
第 1 组（n = 46）包括 25 名男性和 21 名女性（年龄=22.4 ± 1.89 岁）。第 2 组（n = 45）包括 17 名男性和 28 名女性（年龄=20.9 ± 1.72 岁）。
两组均依次完成 ImPACT 形式 1、2 和 3，第 1 组间隔 1 周，第 2 组间隔基线、第 45 天和第 50 天。第 2 组还完成了绿字记忆测试（WMT）作为努力的衡量标准。
计算时间点之间的 ImPACT 综合评分的组内相关系数（ICC）。使用重复测量方差分析评估 ImPACT 和 WMT 结果随时间的变化。
第 1 组的 ICC 值范围为 0.26 至 0.88，涉及 4 个 ImPACT 综合评分。第 2 组的 ICC 值范围为 0.37 至 0.76。在第 1 组中，ImPACT 将 37.0%和 46.0%的健康参与者分别归类为第 2 个和第 3 个时间点的损伤。在第 2 组中，ImPACT 将 22.2%和 28.9%的健康参与者分别归类为第 2 个和第 3 个时间点的损伤。
我们发现 ImPACT 指标的测试-再测试可靠性存在差异。视觉运动速度和反应时间的可靠性大于言语和视觉记忆。我们目前的数据支持使用临床检查、症状报告、认知测试和平衡评估对脑震荡进行多方面评估的方法。
