Objective:

To evaluate the psychometric properties of the Questionnaire of Sociocultural Influences on the Aesthetic Body Shape Model (CIMEC-26), in a population of young women.

Method:

The sample consisted of 799 women aged 12 to 30 years (. = 20.29, SD = 2.84). Two groups were included: control and clinical.

Results:

We observed an adequate internal consistency of the instrument (α = .90). The exploratory factor analysis revealed four factors: 1) Influence of advertising; 2) Influence of social models; 3) Influence of messages and social situations; and 4) Discomfort due to body image. These were ratified in the confirmatory factor analysis, presenting a good fit of the data: 1) significant chi square (X. (274) = 727.45, . = .001); 2) GFI = .925; 3) AGFI = .976; 4) CFI = .935; 5) RMSEA = .075; 6) RMR = .043. Different cut-off points were explored, observing 22 as the most appropriate according to the sensitivity (66%) and specificity (100%) values.

Conclusion:

This version showed adequate consistency and construct validity. We observed the usefulness of this questionnaire for mental health professionals, wherefore the study is an important contribution to the field of eating disorders in Mexico.