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


METHODS
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.


RESULTS
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.


CONCLUSIONS
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.
, 40-326, Katowice, Poland, abrytek-matera@swps.edu.pl.
Anna
A
Brytek-Matera
Magdalena
M
Krupa
Eleonora
E
Poggiogalle
Lorenzo Maria
LM
Donini
D000293:Adolescent; D000328:Adult; D001294:Attitude to Health; D004032:Diet / Q000523:psychology; D005163:Factor Analysis, Statistical; D005247:Feeding Behavior / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D009770:Obsessive Behavior / Q000175:diagnosis* / Q000523:psychology; D011044:Poland; D011569:Psychiatric Status Rating Scales; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D055815:Young Adult