Psychometric Properties of the Persian Version of Equanimity Scale 16 (ES-16)

Equanimity is a kind of receptive consciousness with a non-reactive attitude that is the main component of mindfulness practice and is known as the key mechanism of mindfulness-based interventions. The aim of this study was to survey the validity and reliability of the Persian version of the Equanimity Scale. The method of the present study was a descriptive survey. The statistical population of the study was all clients of counseling and psychotherapy centers in Tehran in 1399, of which 315 were selected as a sample by the available sampling method. The instruments used in the study included the Equanimity Scale (ES-16) (Rogers, Shires,& Cayoun 2020), the Self-Control questionnaire (Tangney, Baumeister and Boone, 2004) the Distress Tolerance Scale (DTS) (Simmons and Gahr, 2005). Research data were analyzed by confirmatory factor analysis (CFA), Cronbach's alpha, and Pearson coefficient using SPSS 24 and AMOS 22 software. The results of exploratory factor analysis showed that the Iranian version of the Equanimity Scale includes 16 questions and two subscales. Confirmation indices of the model Confirmatory factor analysis confirmed the appropriate fit of the model.  There was a significant direct relationship between the scale of Equanimity with distress tolerance and self-control (P<0.01). Cronbach's alpha was obtained for the whole scale of 0.79. The Iranian version of the Persian Equanimity Scale has good psychometric properties and can be used.