Journal
PSYCHIATRY AND CLINICAL NEUROSCIENCES
Volume 59, Issue 2, Pages 135-139Publisher
WILEY
DOI: 10.1111/j.1440-1819.2005.01347.x
Keywords
IES; occupational stress; reliability; SARS; validity
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The purpose of the present study was to validate the Impact of Events Scale (IES) in a sample of nurses working under threat of severe acute respiratory syndrome (SARS). The internal consistency, construct validity and convergent validity of the instrument were examined in a sample of 128 nurses during the SARS outbreak in Taiwan. Principal component analysis followed by a quartimax rotation were used to derive a two-factor solution, labeled intrusion (factor 1) and avoidance (factor 2), with both factors accounting for 50.7% of the explained variance. The total Cronbach's alpha of 0.90 reflected the good internal consistency of the instrument. Correlation with the Symptoms Checklist 90-R demonstrated the convergent validity of the IES. In conclusion, the IES can be used as a convenient, reliable and valid instrument for evaluation of the psychological distress of nurses working with the highly contagious disease.
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