Further development of the 12-item EDE-QS: identifying a cut-off for screening purposes

Katarina Prnjak*, Deborah Mitchison, Scott Griffiths, Jonathan Mond, Nicole Gideon, Lucy Serpell, Phillipa Hay

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)
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Background: The Eating Disorder Examination-Questionnaire Short (EDE-QS) was developed as a 12-item version of the Eating Disorder Examination Questionnaire (EDE-Q) with a 4-point response scale that assesses eating disorder (ED) symptoms over the preceding 7 days. It has demonstrated good psychometric properties at initial testing. The purpose of this brief report is to determine a threshold score that could be used in screening for probable ED cases in community settings. 

Methods: Data collected from Gideon et al. (2016) were re-analyzed. In their study, 559 participants (80.86% female; 9.66% self-reported ED diagnosis) completed the EDE-Q, EDE-QS, SCOFF, and Clinical Impairment Assessment (CIA). Discriminatory power was compared between ED instruments using receiver operating characteristic (ROC) curve analyses. 

Results: A score of 15 emerged as the threshold that ensured the best trade-off between sensitivity (.83) and specificity (.85), and good positive predictive value (.37) for the EDE-QS, with discriminatory power comparable to other ED instruments. 

Conclusion: The EDE-QS appears to be an instrument with good discriminatory power that could be used for ED screening purposes.

Original languageEnglish
Article number146
Pages (from-to)1-7
Number of pages7
JournalBMC Psychiatry
Issue number1
Publication statusPublished - 3 Apr 2020

Bibliographical note

Copyright the Author(s) 2020. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.


  • Discriminant validity
  • Eating disorders
  • EDE-QS
  • ROC analysis
  • Screening


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