Evaluating the Factor Structure of the Posttraumatic Cognitions Inventory
ASSESSMENT(2022)
摘要
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 (n= 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 (n= 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.
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关键词
PTCI, posttraumatic cognitions, factor analysis
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