Eating disorders are often underdiagnosed. Orthorexia nervosa (ON), a new type of eating disorder, is defined as excessive preoccupation with healthy eating, causing significant nutritional deficiencies and social and personal impairments. The ORTO-15 is a 15-item instrument widely used to evaluate orthorexia nervosa. It was developed by Donini et al (2005) in Italian and has been translated and adapted in other languages. In this study, the validity and reliability of the Indonesian version of ORTO-15 were assessed. The Indonesian version of the instrument was then reviewed by experts after translation. The back-translation was assessed for consistency with the original instrument. The instrument was then statistically-tested for validity and reliability on 50 randomly selected subjects. The subjects were balanced in gender and the mean age was 19.4 + 0.8 years. The reliability was tested using Cronbach’s alpha. The validity was tested using Pearson's product-moment correlation and confirmatory factor analyses (CFA). The Pearson product moment verified good validity for the instrument (r = 0.369 – 0.881). CFA analyses confirmed good communalities (extraction > 0.5) and revealed three components construct (cumulative 73.5%). Reliability test confirmed that the instrument had good reliability (Cronbach's alpha = 0.915). The ORTO-15 Indonesian version is a valid and reliable instrument for the assessment of ON.
Reproducibility of Results ; Feeding and Eating Disorders

Introduction: Nurses play critical roles in disaster management and are required to demonstrate leadership by dealing with disaster events effectively. This study aimed to identify the nurse leadership indicators at each phase of disaster management. Methods: A qualitative descriptive study was conducted in two phases between November 2017 -January 2018 at two regional hospitals and one central hospital in Yogyakarta. The first phase involved semi-structured in-depth interviews with seven emergency nurses, and the second was a focus group discussions with five nurses’ managers or lecturers. Participants were selected using a purposive sampling technique. Data Analyze used a modified version framework method. Results: We found 49 indicators of nurse leadership in disaster management. We grouped indicators into two major groups: common indicators (27 indicators) and specific indicators (22 indicators). Four themes were obtained according to the disaster management phases: nurse leadership in the mitigation phase, the preparedness phase, the response phase, and the recovery/rehabilitation phase. Each theme contains three main sub-themes (3Cs): character, competence, and the central role of the leader. Conclusion: Using the International Council of Nurses (ICN) framework’s disaster phase as a conceptual basis, 49 nurse leadership indicators were identified as potential information for future items candidates of the instrument for measuring nurse leadership in disaster management.