Psychometric Properties of the UK and Italian Versions of the HSE Stress Indicator Tool
A Crosscultural Investigation
Abstract
The Health and Safety Executive Stress Indicator Tool is a short questionnaire developed in the UK for the screening of common psychosocial risk factors leading to work-related stress. Previous research showed that in both the UK and Italy this test fits the same seven-factor solution. Building upon previous findings and by using multiple-group confirmatory factor analysis we investigated the degree of measurement equivalence of the Italian version of the test with its original UK version. Furthermore, we advanced the validation of the tool in Italy by exploring the correlations of its subscales with stress-related outcomes. Two samples of workers were available for analyses: 1,298 Italian employees of private-sector organizations and a sample of 7,589 UK employees from organizations of the same type. Results replicated previous findings: A 7-factor solution of the Indicator Tool was found to be equivalent across the Italian and UK samples. Furthermore, the analyses supported factor variance and factor covariance equivalence in addition to metric equivalence. The Indicator Tool subscales showed significant correlations in the expected direction with stress-related outcomes. The Italian version of the Indicator Tool behaves very consistently with its UK version and may be used for the screening of psychosocial risks in Italian workplaces.
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