THE POLISH VERSION OF THE SPIRITUALITY INDEX OF WELL-BEING SCALE (SIWB): DEVELOPMENT AND ADAPTATION OF A MEASURE

Abstract

The purpose of this study was to adapt the Polish version of the Spirituality Index of Well-Being Scale (SIWB). Our survey included 392 Polish Catholics, mostly women (N = 267). The factor analyses confirmed the two-factor nature of the SIWB. A model including a second-order factor with two first-order factors similar to the original version proposed by Frey and colleagues (2005) obtained satisfactory values of goodness-of-fit indices. The Polish version of the scale showed high internal consistency. Our study also confirmed the validity of the scale. SIWB scores were positively and strongly related to existential well-being, moderately positively related to resilience and spiritual wellbeing, and positively and weakly related to religious well-being. The SIWB is a tool for measuring spiritual quality of life with good psychometric properties. The tool can be used to diagnose an index of psychological well-being in the general population.