Purpose: Orthorexia nervosa is a currently investigated eating disorder proposed by US physician Steve Bratman, defined as pathological fixation on eating healthy food. This study aimed to develop, by consensus of experts, the basic items for a new questionnaire to evaluate some defining psychological features of orthorexia nervosa in English and Spanish language, the so-called Barcelona Orthorexia Scale (BOS).
Methods: The initial item pool was composed of 105 items divided into six different content areas. To analyse the content of the items, a three-round Delphi study was developed, in which participants had to evaluate the representativeness and clarity of each item. Participants were chosen because of their knowledge on orthorexia and/or eating disorders.
Results: 58 experts, from 17 different countries, participated in the initial round and 30 in the last round. Items were added, rephrased, changed into another content area, modified or eliminated according to the participants' suggestions, partly due to the group's response, analysed statistically, and partly due to participants' recommendations.
Conclusions: 64 items were obtained, with two versions in Spanish and English. The future BOS aims to provide a possible solution to the shortage of valid instruments to evaluate psychological features of orthorexia and to promote research on this field. Further analysis regarding validity and reliability is necessary to prove the BOS' value on this matter.
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The validation of the Barcelona Orthorexia Scale-Spanish version: evidence from the general population.
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Purpose: To validate the Spanish version of Barcelona Orthorexia Scale (BOS) in general population, analyzing its items and both its internal structure and psychometric properties (internal consistency and temporal stability). In addition, the relationship between ON and external measures of attitudes towards food was assessed.
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Article Synopsis
- The study addresses the lack of a consistent definition for orthorexia nervosa (ON), a term coined in 1997 to describe an unhealthy obsession with "correct" eating habits, highlighting gaps in research and diagnostic criteria.
- A modified Delphi process was conducted with 47 international experts to gather insights on ON, where participants evaluated 67 statements regarding its definition and clinical aspects in a three-phase feedback process.
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View Article and Find Full Text PDFThe Barcelona Orthorexia Scale (BOS): development process using the Delphi method.
Eat Weight Disord
April 2019
Department of Clinical Psychology and Psychobiology, Universitat de Barcelona, P. Vall d'Hebron, 171, 08035, Barcelona, Spain.
Purpose: Orthorexia nervosa is a currently investigated eating disorder proposed by US physician Steve Bratman, defined as pathological fixation on eating healthy food. This study aimed to develop, by consensus of experts, the basic items for a new questionnaire to evaluate some defining psychological features of orthorexia nervosa in English and Spanish language, the so-called Barcelona Orthorexia Scale (BOS).
Methods: The initial item pool was composed of 105 items divided into six different content areas.
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