Cardinal Stefan Wyszyński University in Warsaw, Warsaw, Poland.
Faculty of Medicine and Medical Sciences, Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon.
Eat Weight Disord. 2022 Aug;27(6):2073-2080. doi: 10.1007/s40519-021-01350-x. Epub 2022 Jan 29.
Within the literature, there is a variety of different measurement methods for orthorexic behaviours. The ORTO-15 is the one that attracted most research attention. Many scholars criticized the ORTO-15 for its unstable factor structure and over-estimation of the prevalence of orthorexia nervosa. For this purpose, Rogoza and Donini (Eat Weight Disord 26:887-895, 2020) re-assessed the original data and created a new tool, ORTO-R. The development of the ORTO-R theoretically solved many ambiguities associated with its parent measure. However, to date, no study, including the original one, tested the validity of the ORTO-R, leaving its utility somewhat speculative.
We gathered data from 363 Lebanese individuals, who answered the ORTO-R questions and a set of measures used to determine the validity of the scale (eating attitudes, perfectionism, body dissatisfaction, self-esteem, anxiety, and depression). Within this study, we analysed the internal consistency of the scale and different aspects of its validity (factorial, convergent, and divergent).
Results supported all expectations; we successfully confirmed a one-factor measurement model of the ORTO-R, which appeared to be internally consistent. The ORTO-R score correlated positively to other orthorexic behaviours as well as to disordered eating attitudes, perfectionism, anxiety, and depression. It was also negatively related to self-esteem, but was unrelated to body dissatisfaction.
The ORTO-R may be deemed as a valid instrument for the assessment of orthorexic behaviours.
V: Opinions of authorities, based on descriptive studies, narrative reviews, clinical experience, or reports of expert committees.
在文献中，存在多种不同的方法来测量饮食偏执行为。ORTO-15 是最受关注的方法之一。许多学者批评 ORTO-15 的因素结构不稳定，并且高估了饮食偏执障碍的患病率。为此，Rogoza 和 Donini（Eat Weight Disord 26:887-895, 2020）重新评估了原始数据并创建了一个新工具，即 ORTO-R。ORTO-R 的开发理论上解决了与其母体测量相关的许多歧义。然而，迄今为止，包括原始研究在内，尚无研究测试过 ORTO-R 的有效性，使得其效用有些推测性。
我们从 363 名黎巴嫩个体中收集数据，这些个体回答了 ORTO-R 的问题以及一组用于确定量表有效性的测量方法（饮食态度、完美主义、身体不满、自尊、焦虑和抑郁）。在本研究中，我们分析了量表的内部一致性以及其有效性的不同方面（因子、收敛和发散）。
结果符合所有预期；我们成功地证实了 ORTO-R 的单因素测量模型，该模型显示出内部一致性。ORTO-R 得分与其他饮食偏执行为以及饮食障碍、完美主义、焦虑和抑郁呈正相关。它也与自尊呈负相关，但与身体不满无关。
ORTO-R 可被视为评估饮食偏执行为的有效工具。
V：基于描述性研究、叙述性综述、临床经验或专家委员会报告的权威意见。
