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Development and Validation of the Resilience in Eating Disorders Scale (RED-5).

Carlota Las-Hayas1, Odin Hjemdal2, Pedro-José Muñoz3

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Summary

A new 5-item scale, the Resilience in Eating Disorders-5 (RED-5), effectively measures resilience in individuals with eating disorders (EDs). This concise tool predicts quality of life and ED symptoms, aiding personalized treatment.

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Area of Science:

  • Psychiatry
  • Psychometrics
  • Clinical Psychology

Background:

  • A validated resilience scale for eating disorders (EDs) is needed to improve understanding and treatment.
  • The Resilience in Eating Disorders scale (RED) was developed following COSMIN guidelines.

Purpose of the Study:

  • To psychometrically evaluate the RED scale for assessing resilience in individuals with EDs.
  • To refine the RED scale into a concise and reliable measurement instrument.

Main Methods:

  • The RED scale was pilot tested (n=52) and field tested (n=169 ED patients, n=61 recovered, n=349 general population).
  • Participants completed the RED, RS-25, EAT-26, WHOQOL-BREF, and HADS at baseline and 1-year follow-up.
  • Machine learning, exploratory, and confirmatory analyses assessed reliability, validity, and responsiveness.

Main Results:

  • The RED scale was refined to a 5-item version (RED-5) with excellent model fit (RMSEA=0.03, CFI=0.99) and good internal consistency (Cronbach's alpha=0.71).
  • The RED-5 demonstrated strong psychometric properties, including construct validity, convergent validity, known-groups validity, and predictive validity.
  • The RED-5 accurately predicted quality of life, anxiety, depression, and ED symptomatology over one year.

Conclusions:

  • The RED-5 is a brief, psychometrically sound scale for assessing resilience in individuals with EDs.
  • The RED-5 is a valuable tool for clinical practice and research, aiding personalized treatment planning.
  • Its ease of administration and scoring facilitates resilience-informed assessment in mental health settings.