Department of Psychology, Educational Sciences and Human Movement, University of Palermo, Palermo, Italy.
Department of Psychological, Health and Territorial Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy.
Eat Weight Disord. 2023 May 3;28(1):42. doi: 10.1007/s40519-023-01568-x.
Orthorexia nervosa (OrNe) is a potentially pathological condition characterized by a fixation on healthy diet. An increasing number of studies have been conducted on this mental preoccupation, but the validity and reliability of some of the psychometric instruments employed in its assessment are still under debate. Among these measures, the Teruel Orthorexia Scale (TOS) seems to be promising, given that it allows to differentiate between OrNe and other non-problematic forms of interest with healthy eating, named as healthy orthorexia (HeOr). The aim of this study was to examine the psychometric properties of an Italian version of the TOS, by testing its factorial structure, internal consistency, test-retest reliability, and validity.
Through an online survey, we recruited 782 participants from different regions of Italy, asking them to complete the following self-report instruments: TOS, EHQ, EDI-3, OCI-R, and BSI-18. From the initial sample, 144 participants agreed to complete a second TOS administration 2 weeks later.
Data confirmed the validity of the 2-correlated factors structure of the TOS. The questionnaire also showed good reliability, both in terms of internal consistency and temporal stability. With regard to the TOS validity, results showed that OrNe was significantly and positively associated with measures of psychopathology and psychological distress, while HeOr showed no correlations or negative associations with the above-mentioned measures.
Based on these results, the TOS can be considered a promising measure for the assessment of both pathological and non-problematic forms of orthorexic eating behavior also in Italian population.
Level V, descriptive cross-sectional study.
饮食强迫症（OrNe）是一种潜在的病理性状态，其特征是对健康饮食的过分关注。越来越多的研究已经针对这种心理困扰进行了研究，但在评估中使用的一些心理计量工具的有效性和可靠性仍存在争议。在这些措施中，特鲁埃尔饮食强迫症量表（TOS）似乎很有前途，因为它可以区分饮食强迫症和其他与健康饮食相关的非问题形式，即健康饮食强迫症（HeOr）。本研究的目的是通过检验其因子结构、内部一致性、重测信度和效度，来检验 TOS 的意大利语版本的心理测量特性。
通过在线调查，我们从意大利不同地区招募了 782 名参与者，要求他们完成以下自我报告量表：TOS、EHQ、EDI-3、OCI-R 和 BSI-18。在初始样本中，有 144 名参与者同意在 2 周后完成第二次 TOS 测试。
数据证实了 TOS 的 2 个相关因素结构的有效性。该问卷还表现出良好的可靠性，无论是在内部一致性还是在时间稳定性方面。关于 TOS 的有效性，结果表明，饮食强迫症与心理病理学和心理困扰的测量值呈显著正相关，而健康饮食强迫症与上述测量值没有相关性或负相关性。
基于这些结果，TOS 可以被认为是一种有前途的评估病理性和非病理性饮食强迫症行为的方法，也适用于意大利人群。
五级，描述性横断面研究。
