Adaptation of the ORTHO-15 test to Polish women and men

  • Anna Brytek-MateraEmail author
  • Magdalena Krupa
  • Eleonora Poggiogalle
  • Lorenzo Maria Donini
Original Article



There is a lack of Polish tools to measure behaviour related to orthorexia nervosa. The purpose of the present study was to validate the Polish version of the ORTHO-15 test.


341 women and 59 men (N = 400) were recruited, whose age ranged from 18 to 35 years. Mean age was 23.09 years (SD = 3.14) in women and 24.02 years (SD = 3.87) in men. The ORTHO-15 test and the EAT-26 test were used in the present study.


Factor analysis (exploratory and confirmatory analysis) was used in the present study. Exploratory factor analysis performed on the initial 15 items from a random split half of the study group suggested a nine-item two-factor structure. Confirmatory factor analysis performed on the second randomly selected half of the study group supported this two-factor structure of the ORTHO-15 test. The Polish version of the ORTHO-15 test demonstrated an internal consistency (Cronbach’s alpha) equal to 0.644.


The Polish version of the ORTHO-15 test is a reliable and valuable instrument to assess obsessive attitudes related to healthy and proper nutrition in Polish female and male population.


Orthorexia nervosa ORTHO-15 test Young adults 


Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Anna Brytek-Matera
    • 1
    Email author
  • Magdalena Krupa
    • 2
  • Eleonora Poggiogalle
    • 3
  • Lorenzo Maria Donini
    • 3
  1. 1.KatowicePoland
  2. 2.Polish National Center for Eating DisordersPoznanPoland
  3. 3.Sapienza University of RomeRomeItaly

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