Psychometric properties of the full-form and short-form versions of the Integration of Stressful Life Experiences Scale (ISLES) among Iranian university students

Background: Making adaptivemeaning of stressful life experiences has been identified
as an important determinant of adjustment. The Integration of Stressful Life Experiences
Scale (ISLES) was developed to assess the outcome of meaning-making processes
in the face of negative events.
Aims: The psychometric properties of this scale have not been measured in Iranian
populations. The purpose of the present study was to examine the psychometric properties
of the 16-item and 6-item versions of ISLES with a sample of 502 university
students who had experienced relationship dissolution.
Results: Findings support a two-factor structure with acceptable validity and reliability.
Positive correlations between the scores of ISLES with Centrality of Event Scale and
PTSD symptoms provided evidence of concurrent validity.
Conclusion: The results of measurement invariance indicated that both the 16-item
and 6-item versions of ISLES are gender invariant and can be used to assess meaningmade
in both men and women.