Psychometric properties of the Iranian version of Diabetes Empowerment Scale (IR-DES-28)

Mohammad Yoosef Mahjouri, Seyed Masoud Arzaghi, Ramin Heshmat, Patricia Khashayar, Ensieh Nasli Esfahani, Bagher Larijani

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Background: This study was designed to determine the primary psychometric properties of the Iranian version of the Diabetes Empowerment Scale (IR-DES-28). Methods: After translating the questionnaire into Persian, re-translating it into English and obtaining the confirmation of the diabetes specialists regarding the accuracy of the translated questionnaire, 100 patients with type 2 diabetes selected using a systematic random sampling method completed the Iranian-DES-28. The validity of IR-DES-28 was evaluated by construct, concurrent and criterion validity, whereas its reliability was assessed by test re-test, internal consistency and splitting method. Results: Psychometric analysis confirmed the reliability and validity of the IR-DES-28 in three subscales: Self-awareness and managing psychological aspects of diabetes (α=0.80), goal achievement ability (α=0.50), the ability of setting goals (α=0.79). Test-retest reliability, evaluated through Pearson coefficient correlation, was equal to 0.74 (P <0.01). The total score of IR-DES-28 and that of the extracted subscales were correlated with HbA 1c levels (metabolic control) (P <0.01). The findings also supported the concurrent validity of the questionnaire. Conclusion: The validity and reliability of the Iranian-DES scale is acceptable. Thus, the scale could be an appropriate instrument in evaluating the empowerment-based education programs.

Original languageEnglish (US)
Pages (from-to)1-5
Number of pages5
JournalJournal of Diabetes and Metabolic Disorders
Issue number1
StatePublished - 2012
Externally publishedYes


  • Diabetes
  • Diabetes empowerment
  • Diabetes empowerment scale
  • Psychometric properties


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