Psychometric properties of a Greek translation of the intuitive eating Scale-3 (IES-3) in adults from Greece.

The Intuitive Eating Scale-3 (IES-3) is a new, 12-item measure of intuitive eating, which is recognised as a protective factor of disordered eating. Given its recency, there has been limited evaluation of the psychometric properties of the IES-3 in diverse national and linguistic contexts. Therefore, we report on the translation and psychometric evaluation of a novel Greek version of the IES-3 in Greek adults. A total of 1,138 women and 712 men completed the Greek IES-3 alongside additional measures selected to assess validity. Exploratory factor analysis with a first split-half subsample showed that the original 4-factor model fit the data well. In a second split-half subsample, a bifactor-exploratory structural equation model (B-ESEM) with a G-factor and four S-factors fit the data and demonstrated superior fit compared to alternative models. Across subsamples, the 4-factor and B-ESEM models demonstrated gender invariance and did not show measurement bias in terms of age and body mass index. Validity analyses revealed that intuitive eating was associated with higher positive body image and psychological well-being and lower disordered eating and psychological distress. These results indicate that the Greek IES-3 has robust psychometric properties.