Psychometric Properties of the Persian Version of Mindfulness Inventory for Sport (MIS)

Abstract

Mindfulness is a cognitive process during which the mindful persons focus their attention to experience feelings and incidents happening in the present moment within or around themselves. The aim of this study was to determine validity and reliability of the Persian version of Mindfulness Inventory for Sport. For this purpose, 150 athletes with different levels of skills in 7 sport fields, individual and team, were selected by cluster random sampling method and completed the Persian version of this inventory. The method of the research was as follows: firstly, using translation-back translation method, translate accuracy of the Persian version of this inventory was confirmed. Confirmatory factor analysis based on structural equation modeling was used to determine construct validity of this Persian version. Cronbach alpha coefficient was used to determine internal consistency and intra-class correlation coefficient under test-retest method was used to study temporal reliability of items. The results showed that first-order (RMSEA=0.042, CFI=0.97 and TLI=0.96) and second-order (RMSEA=0.042, CFI=0.97 and TLI=0.96) confirmatory factor analyses, Cronbach alpha coefficients (ɑ=0.79) and intra-class correlation (0.85) of the Persian version of Mindfulness Inventory for Sport supported 3-factor and 15-item structure of this inventory and confirmed validity and reliability of this inventory.

Keywords

• mindfulness
• non-judgment
• refocusing
• validation