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Anales de Psicología

versión On-line ISSN 1695-2294versión impresa ISSN 0212-9728


BARRADA, Juan Ramón  y  RONCERO, María. Bidimensional Structure of the Orthorexia: Development and Initial Validation of a New Instrument. Anal. Psicol. [online]. 2018, vol.34, n.2, pp.282-290. ISSN 1695-2294.

Orthorexia nervosa could be conceptualized as extreme or excessive preoccupation with eating food believed to be healthy. Orthorexia nervosa and healthy orthorexia (interest in healthy eating) can be distinguised. Up to now, there is no available instrument evaluating every aspect of orthorexia with sufficient psychometric guarantees. The objective of the present study was two-fold. First, to develop and validate a new questionnaire of orthorexia -the Teruel Orthorexia Scale- and, second, to analyze the association with other psychological constructs and disorders theoretically related to orthorexia nervosa: eating disorder symptoms, obsessive-compulsive disorder symptoms, negative affect, and perfectionism. Participants were 942 mainly university students who completed a battery of online questionnaires. Of them, 148 provided responses in a retest 18 months later. Starting with an initial item bank of 31 items, we proposed a bidimensional test of orthorexia. This final version, with 17 items, encompassed two related, although differentiable (r = .43), aspects of orthorexia. First, Healthy Orthorexia, which evaluates the healthy interest with diet, which is independent of psychopathology, and even inversely associated with it. Second, Orthorexia Nervosa, which assesses the negative social and emotional impact of trying to achieve a rigid way of eating. This dimension represents a pathological preoccupation with a healthy diet. This study presents a new instrument that offers promising possibilities in the study of orthorexia.

Palabras clave : Orthorexia nervosa; Eating disorder; Validation; Questionnaire.

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