The Turkish adaptation and psychometric characteristics of the Intolerance of Uncertainty Index-A for Children


TÜRK F., Hamamci Z.

BULLETIN OF THE MENNINGER CLINIC, cilt.89, sa.2, ss.134-153, 2025 (SSCI, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 89 Sayı: 2
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1521/bumc.2025.89.2.134
  • Dergi Adı: BULLETIN OF THE MENNINGER CLINIC
  • Derginin Tarandığı İndeksler: Social Sciences Citation Index (SSCI), Scopus, EMBASE, MLA - Modern Language Association Database, Psycinfo
  • Sayfa Sayıları: ss.134-153
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Intolerance of uncertainty (IU) is a cognitive factor linked to various mental health disorders, especially anxiety, in children and adolescents. This study aimed to adapt and validate the Intolerance of Uncertainty Index-A for Children (IUI-A-C) into Turkish. A sample of 552 participants aged 10 to 19 years (M = 13.84, SD = 2.29) completed the Turkish version of the IUI-A-C and measures of anxiety. The study assessed confirmatory factor analysis, internal consistency reliability, criterion validity, item discrimination, and test-retest reliability. The adapted scale showed good psychometric properties, with confirmatory factor analysis indicating a good fit to the data. Internal consistency reliability was adequate (Cronbach's alpha = .73), and criterion validity was supported by a moderate positive correlation with anxiety measures. Item discrimination analysis demonstrated the scale's ability to differentiate between high and low levels of IU, and test-retest reliability was excellent (intraclass correlation coefficient = .92). Thus, the Turkish IUI-A-C is a valid and reliable tool for assessing IU in children and adolescents. (Bulletin of the Menninger Clinic, 89[2], 134-153)