Abstract

The revised restraint scale (RS) it is a psychometric instrument for measuring chronic alimentary restraint. Aim: To obtain reliability measures and factorial structure of a Spanish RS version in an adolescent sample. Materials and Methods: 838 adolescents female students (15.48 y.) completed the instrument. An exploratory (i.e. principals components, oblique rotation) and confirmatory factorial analysis was performed over the RS scores. Results: Both RS sub-scales shown appropriate reliability, although item 9 achieved low corrected homogeneity (r<.3). After exploratory factorial analysis two correlated factors (Diet Concern and Weight Fluctuations) emerged, explaining 55.76% of the variance. Confirmatory analyses yielded moderate fit of the hypothetic bifactorial structure. Conclusions: The Spanish RS version shows a bifactorial structure and good reliability levels in adolescent sample.