School of Psychology and Counselling, Queensland University of Technology, Brisbane, Australia.
School of Psychology and Counselling, and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.
Brain Inj. 2023 Jan 28;37(2):87-94. doi: 10.1080/02699052.2023.2165150. Epub 2023 Jan 18.
Persistent postconcussion symptoms (PPCS) are challenging to diagnose. An improved diagnostic process could consider and postconcussion symptoms. This study examined the structure of a modified Rivermead Post-concussion Symptoms Questionnaire (mRPQ) with both symptom types.
298 adult volunteers were randomized into groups: honest responders, mild traumatic brain injury (mTBI) simulators (MS), and biased mTBI simulators (BMS). Both mTBI simulating groups were coached about mTBI and primed about the simulation context (compensation evaluation). The BMS group was also encouraged to bias (exaggerate) symptoms. The participants completed an online battery of tests, including the mRPQ.
An exploratory factor analysis of the mRPQ (full sample) revealed a three-factor solution, including a separate dimension for atypical symptoms (all item loadings >0.45, ~4% of explained variance). The overall and group analyses of the standard RPQ items (typical symptoms) found a one- or two-factor solution, as did the analyses of atypical symptoms.
Consistent with prior RPQ research, a unidimensional or bifactor structure was measurable from standard RPQ symptoms. Whilst this study did not find support for domain-level symptom scores for either typical or atypical symptoms, the findings support the use of an overall atypical symptoms score.
持续性脑震荡后症状（PPCS）的诊断具有挑战性。改进的诊断过程可以考虑和脑震荡后症状。本研究用这两种症状类型来检验改良 Rivermead 脑震荡后症状问卷（mRPQ）的结构。
298 名成年志愿者被随机分为三组：诚实反应者、轻度创伤性脑损伤（mTBI）模拟者（MS）和有偏差的 mTBI 模拟者（BMS）。两个 mTBI 模拟组都接受了关于 mTBI 的辅导，并对模拟情境进行了提示（赔偿评估）。BMS 组还被鼓励夸大（夸大）症状。参与者完成了一系列在线测试，包括 mRPQ。
对 mRPQ（全样本）的探索性因素分析显示，存在三个因素的解决方案，包括一个独立的非典型症状维度（所有项目的负荷>0.45，解释方差的~4%）。标准 RPQ 项目（典型症状）的总体和组分析以及非典型症状的分析发现了一个或两个因素的解决方案。
与先前的 RPQ 研究一致，标准 RPQ 症状可测量出单维或双因素结构。虽然本研究没有发现典型或非典型症状的域级症状评分的支持，但这些发现支持使用整体非典型症状评分。
