The Psychometric Properties of the Relaxation/Meditation/Mindfulness (RMM) Tracker t Inventory in an Iranian Population.

Background: A growing body of research has examined the psychometric properties of popular mindfulness inventories for different population. The present study is aimed at exploring the psychometric properties and factor structure of the Relaxation/Meditation/Mindfulness (RMM) Tracker t Inventory in Iran.

Method: This was a cross-sectional and methodological study that conducted in Kerman, southeast Iran. Fifty, 300, and 163 Iranian adult participants were participated in the pilot, exploratory, and confirmatory phase, respectively. Face, content, and structural validities, Cronbach's alpha, and Omega coefficient were used to validate the Persian scale.

Results: The results showed that the "Persian version of RMM t" had acceptable content and face validities. The Principal Axis Factoring (PAF) with Promax Rotation showed that the P-RMM t has 3 scales of "Mindful Love, Thankfulness, and Transcendence," "Relaxation," and "Mindful Deepening" which further confirmed with confirmatory factor analysis. The internal consistency of all three scales was acceptable (Cronbach's alpha coefficients > 80).

Conclusion: The Persian version of RMM Tracker t seems to be a valid and reliable questionnaire to assess the levels of mindfulness in the Iranian general population.