背景:计算机神经认知测试(CNT)经常用于运动员脑震荡后的连续评估。认知测试的即时脑震荡后评估(Impact)是一种常用的CNT,在健康样本中具有良好记录的测试重测可靠性,间隔从一个月到两年不等。然而,以前的研究尚未探索将ImPACT用于其他系列测试方法,例如可能需要在同一天给药的实验性试验/干预之前和之后.
目的:为了检查ImPACT对短期,神经认知功能的系列评估。
方法:前瞻性,重复措施研究设计。
方法:42健康,大学年龄的人两次完成了IMPACT,两次评估之间有一个小时的休息时间。可靠性使用皮尔逊相关系数进行评估,类内相关系数(ICC),可靠变化指数(RCI)和基于回归的方法(RBM)。
结果:在评估之间没有观察到平均ImPACT综合评分或症状评分的显著增加。ICC范围为0.34至0.74(单个)/0.51至0.85(平均)。在两个测试管理机构中,使用RCI和RBM时,92-100%和93-98%的参与者的变化分数落在临界值内,分别。
结论:在一小时给药过程中,ImPACT综合评分和因子评分的ICC与以前的研究一致。只有一小部分分数超出了RCI和RBM截止值。这些统计指标表明,当在一小时内重复给药时,ImPACT具有足够的可靠性。
BACKGROUND: Computerized Neurocognitive Testing (CNT) is frequently used for serial assessment of athletes following concussion. The Immediate Post-Concussion Assessment for Cognitive Testing (ImPACT) is a commonly used CNT with well-documented test-retest reliability in healthy samples for intervals ranging from one month to two years. However, previous research has not explored use of ImPACT for other serial testing methodologies such as immediately before and after an experimental trial/intervention where administration on the same day may be necessary.
OBJECTIVE: To examine the suitability of ImPACT for short-term, serial assessment of neurocognitive functioning.
METHODS: Prospective, repeated measures research design.
METHODS: Forty-two healthy, college-aged individuals completed ImPACT twice, with a one-hour break between assessments. Reliability was assessed using Pearson correlation coefficients, intraclass correlation coefficients (ICCs), reliable change indices (RCIs) and regression-based methods (RBM).
RESULTS: No significant increases in mean ImPACT composite or symptom scores were observed between assessments. ICCs ranged from 0.34 to 0.74 (single)/0.51 to 0.85 (average). Across two test administrations, 92-100% and 93-98% of participants\' change scores fell within cutoffs when utilizing the RCI and RBM, respectively.
CONCLUSIONS: The ICCs for ImPACT composite and factor scores across the one-hour administration were consistent with previous studies. Only a small percentage of scores fell outside of RCI and RBM cutoffs. These statistical metrics suggest that ImPACT has sufficient reliability when repeating administration within one-hour.