Psychometric properties of the Iranian version of mindful eating questionnaire in women who seeking weight reduction

Background: The aim of the present study was to test the validity, reliability and factor structure of the original Mindful Eating Questionnaire (MEQ) for use in an Iranian population.

Methods: This was a cross-sectional study conducted on 150 women who attended four athletic gyms and met the inclusion criteria in Ahvaz city in July of 2015. After linguistic validation of the Iranian version of the MEQ, the content validity ratio (CVR) and content validity index (CVI) were assessed by an expert panel. Then, exploratory factor analysis (EFA) was performed on the scale constructs and scale reliability (internal consistency and test-retest reliability) was assessed with respect to the psychometric properties of the scale.

Results: The CVR and CVI scores for the MEQ were 0.89 and 0.93, respectively. EFA loaded all 28-items with a 5-factor solution ('awareness', 'distraction', 'disinhibition', 'emotional response' and 'external cues') that jointly accounted for 53.78% of the observed variance. The results of the EFA supported the item 'When a restaurant portion is too large, I stop eating when I'm full' being placed in the external cues rather than the disinhibition subscale. This displacement improved the reliability coefficient for this subscale.The results of internal consistency analysis, including Cronbach's alpha (ranging from 0.73 to 0.81) and intraclass correlation coefficients (ranging from 0.73 to 0.91) were satisfactory.

Conclusions: The Persian version of the MEQ appears to be valid and reliable; therefore, it can be an effective tool in designing mindfulness-based interventions for the treatment of individuals with eating disorders, overweight and obesity in an Iranian population.