Factor structure and concurrent validity of the World Assumptions Scale

Ask Elklit*, Mark Shevlin, Zahava Solomon, Rachel Dekel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

The factor structure of the World Assumptions Scale (WAS) was assessed by means of confirmatory factor analysis. The sample was comprised of 1,710 participants who had been exposed to trauma that resulted in whiplash. Four alternative models were specified and estimated using LISREL 8.72. A correlated 8-factor solution was the best explanation of the sample data. The estimates of reliability of eight subscales of the WAS ranged from .48 to .82. Scores from five subscales correlated significantly with trauma severity as measured by the Harvard Trauma Questionnaire, although the magnitude of the correlations was low to modest, ranging from .08 to - .43. It is suggested that the WAS has adequate psychometric properties for use in both clinical and research settings.

Original languageEnglish
Pages (from-to)291-301
Number of pages11
JournalJournal of Traumatic Stress
Volume20
Issue number3
DOIs
StatePublished - Jun 2007

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