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Eating Disorders and Behaviors · Journal article
Eating and Weight Disorders - Studies on Anorexia Bulimia and Obesity · September 5, 2026
Early or partial results. Treat as a signal, not a conclusion.
This is a translation and validation study of the ORTO-R Scale for measuring orthorexic tendencies in Turkish-speaking adolescents. The instrument demonstrated acceptable internal consistency (Cronbach's α = 0.77) and a three-factor structure with meaningful correlations to related eating-disorder and anxiety measures, but the single small clinical sample is insufficient to establish robust clinical utility without confirmation in larger and more representative populations.
Cross-sectional validation study in a clinical sample. Adolescents aged 12–17 years attending a child and adolescent psychiatry outpatient clinic (setting: Turkey).. Intervention: Turkish translation of the ORTO-R Scale (a measure of orthorexic tendencies). Compared with: Eating Attitudes Test-26, Orthorexia Nervosa Inventory, Revised Child Anxiety and Depression Scale, and semi-structured clinical interview. n = 132. Single child and adolescent psychiatry outpatient clinic in Turkey.
Internal consistency: Cronbach's α and McDonald's ω both 0.77 Confirmatory factor analysis identified a three-factor structure with favorable model fit Total ORTO-R scores showed moderate positive correlations with orthorexic and eating disorder symptoms
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The Turkish ORTO-R may be useful as a screening tool for orthorexic tendencies in adolescent clinical settings, but clinicians should await larger validation studies before relying on it for diagnostic or treatment-monitoring purposes.
A single-centre validation study of a translated psychometric instrument in a small clinical sample with acceptable internal consistency and correlational validity, but requiring larger and more diverse samples for confirmation.
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The Turkish ORTO-R may be useful as a screening tool for orthorexic tendencies in adolescent clinical settings, but clinicians should await larger validation studies before relying on it for diagnostic or treatment-monitoring purposes.
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Orthorexia nervosa refers to a pathological preoccupation with healthy eating characterized by rigid dietary rules, excessive concern about food purity, and distress when these rules are violated. Despite growing clinical interest, validated instruments for assessing orthorexic tendencies in children and adolescents remain limited. This study aimed to evaluate the validity and reliability of the Turkish version of the ORTO-R Scale in a clinical sample of adolescents and to examine its associations with eating-related and anxiety symptoms. A total of 132 participants aged 12–17 years were recruited from a child and adolescent psychiatry outpatient clinic. Participants completed the ORTO-R Scale, the Eating Attitudes Test-26, the Orthorexia Nervosa Inventory, and the Revised Child Anxiety and Depression Scale, and psychiatric diagnoses were assessed using a semi-structured clinical interview. The ORTO-R demonstrated good internal consistency, with Cronbach’s α and McDonald’s ω coefficients of 0.77. Confirmatory factor analysis identified a three-factor structure with favorable overall model fit. Total ORTO-R scores showed moderate positive correlations with orthorexic and eating disorder symptoms and low-to-moderate correlations with anxiety symptoms. The Turkish version of the ORTO-R showed promising preliminary psychometric properties in this psychiatric outpatient sample, including acceptable internal consistency and meaningful associations with related measures. Further studies in larger, more diverse, and community-based samples are needed to confirm its validity, reliability, and clinical utility.
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