Department of Psychology.
Traumatic Stress Center.
Psychol Assess. 2022 Dec;34(12):1166-1171. doi: 10.1037/pas0001164. Epub 2022 Sep 8.
Inflexible negative trauma-related cognitions are a common consequence of trauma exposure and an important indicator of posttraumatic stress disorder. One common measure of trauma-related cognitions is the 36-item Posttraumatic Cognitions Inventory (PTCI; Foa et al., 1999). Recently, a nine-item abbreviated version was developed (PTCI-9; Wells et al., 2019), which may be a reliable alternative with improved model fit. The present study examined the latent factor structure of the PTCI and PTCI-9 in a sample of 185 treatment-seeking outpatients with traumatic stress symptoms to replicate and extend initial findings on the psychometric properties of the PTCI-9. Using confirmatory factor analysis, the correlated three-factor model of the PTCI-9 demonstrated excellent model fit at Time 1 and Time 2 (6 weeks later), as well as strong internal and test-retest reliability. It also exhibited configural, metric, and scalar invariance across time. The present study replicated previous findings that the PTCI-9 may be a psychometrically sound alternative for measuring trauma-related cognitions. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
僵化的负性创伤相关认知是创伤暴露的常见后果，也是创伤后应激障碍的一个重要指标。创伤相关认知的一种常见衡量标准是 36 项创伤后认知清单（PTCI；Foa 等人，1999 年）。最近，开发了一个九项的缩写版本（PTCI-9；Wells 等人，2019 年），它可能是一种更可靠的替代方法，具有改进的模型拟合度。本研究在 185 名寻求创伤后应激症状治疗的门诊患者样本中检验了 PTCI 和 PTCI-9 的潜在因子结构，以复制和扩展 PTCI-9 心理测量特性的初始发现。使用验证性因素分析，PTCI-9 的相关三因素模型在第 1 次和第 2 次（6 周后）时间点均表现出极佳的模型拟合度，同时具有很强的内部一致性和重测信度。它还在时间上表现出了配置、度量和标度不变性。本研究复制了之前的发现，即 PTCI-9 可能是衡量创伤相关认知的一种具有心理测量学意义的替代方法。
