Test–retest reliability of the Salutogenic Wellness Promotion Scale (SWPS)

Objective:This study examined the temporal stability (i.e. test–retest reliability) of the Salutogenic Wellness Promotion Scale (SWPS) using intraclass correlation coefficients (ICC). Current intraclass results were also compared to previously published interclass correlations to support the use of the intraclass method for test–retest analyses.Method:One thousand, one hundred and thirty-one participants completed the SWPS twice, two weeks apart. ICC and descriptive statistics were calculated.Results:Test–retest reliability was moderate to high for 23 of 25 SWPS items in males and 25 of 25 SWPS items in females. Differences in reliability across the seven SWPS dimensions were observed.Conclusions:The reliability of the SWPS suits it well for further refinement. Intraclass correlation procedures likely detect more error, when compared to interclass correlation analyses, in the examination of temporal stability of measures.