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Related Experiment Video

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Evaluating the Factor Structure of the Posttraumatic Cognitions Inventory.

Sarah E Whiteman1, Lindsay B Kramer1, Madison W Silverstein1

  • 1Auburn University, Auburn, AL, USA.

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|September 5, 2020
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Summary

The Posttraumatic Cognitions Inventory (PTCI) shows inconsistent factor structure. The newer PTCI-9 demonstrates a promising alternative for measuring posttraumatic cognitions in trauma-exposed individuals.

Keywords:
PTCIfactor analysisposttraumatic cognitions

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Area of Science:

  • Psychology
  • Clinical Psychology
  • Trauma Studies

Background:

  • The Posttraumatic Cognitions Inventory (PTCI) is a widely used measure for assessing posttraumatic cognitions.
  • Previous research has yielded inconsistent findings regarding the PTCI's factor structure, often requiring item removal for replication.

Purpose of the Study:

  • To examine the factor structure of the Posttraumatic Cognitions Inventory (PTCI) in a sample of trauma-exposed undergraduates.
  • To evaluate the psychometric properties of the recently developed PTCI-9 as a potential alternative measure.

Main Methods:

  • Conducted a series of confirmatory factor analyses (CFAs) on the PTCI using established and modified models.
  • Performed CFAs on the PTCI-9 in two independent samples of trauma-exposed undergraduates (N = 868 and N = 971).

Main Results:

  • CFAs of the original PTCI models indicated poor fit across all tested structures.
  • The PTCI-9 demonstrated near adequate fit in both independent samples, suggesting improved structural validity.
  • These findings underscore limitations in the original PTCI's factor structure.

Conclusions:

  • The original Posttraumatic Cognitions Inventory (PTCI) requires revision due to inconsistent factor structure.
  • The PTCI-9 shows promise as a more reliable and valid measure of posttraumatic cognitions.