Auburn University, Auburn, AL, USA.
Assessment. 2022 Mar;29(2):128-135. doi: 10.1177/1073191120954915. Epub 2020 Sep 4.
The Posttraumatic Cognitions Inventory (PTCI) is one of the most widely used measure of posttraumatic cognitions. The original factor analysis of the PTCI provided evidence for a three-factor model of negative cognitions about self, world, and self-blame. However, subsequent research has failed to replicate this factor structure without removing multiple items. Given these inconsistent findings, we examined the PTCI factor structure in a sample of trauma-exposed undergraduates ( = 868). First, we conducted a series of four confirmatory factor analyses (CFAs) based on previously published models of the PTCI and a modified model based on previously removed items, all which indicated poor fit. Next, we conducted a CFA of the recently published three-factor PTCI-9, which approached adequate fit. We then replicated the CFA of the PTCI-9 in a second independent sample ( = 971), finding a similar pattern of near adequate fit. These findings highlight the need to revise the PTCI. In addition, results indicate the promising nature of the PTCI-9 as an alternative measure of posttraumatic cognitions.
创伤后认知清单（PTCI）是最广泛使用的创伤后认知测量之一。PTCI 的原始因子分析为自我、世界和自责的负面认知提供了三因素模型的证据。然而，后续的研究未能在不删除多个项目的情况下复制这种因子结构。鉴于这些不一致的发现，我们在一组经历过创伤的本科生样本（n=868）中检查了 PTCI 的因子结构。首先，我们根据之前发表的 PTCI 模型和基于之前删除项目的修改模型进行了一系列四项验证性因子分析（CFA），所有这些模型都表明拟合度较差。接下来，我们对最近发表的三因素 PTCI-9 进行了 CFA，结果接近适度拟合。然后，我们在第二个独立样本（n=971）中复制了 PTCI-9 的 CFA，发现了类似的适度拟合模式。这些发现强调了修订 PTCI 的必要性。此外，结果表明 PTCI-9 作为一种替代的创伤后认知测量方法具有很大的潜力。
