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Table 1 Results of the item analysis of ORTO-15 in our sample

From: When eating healthy is not healthy: orthorexia nervosa and its measurement with the ORTO-15 in Hungary

  Mean Standard deviation Original, 15-item version Final, 11-item version
Corrected item-total correlation Cronbach’s alpha if item deleted Standardized factor loadings in Model 2 Corrected item-total correlation Cronbach’s alpha if item deleted Standardized factor loadings in Model 4
Item 1 2.09 0.94 0.47 0.76 0.48 0.43 0.81 0.46
Item 2 1.29 0.63 0.46 0.77 0.63 0.53 0.80 0.64
Item 3 1.76 0.94 0.57 0.75 0.80 0.65 0.79 0.82
Item 4 2.08 0.88 0.49 0.76 0.46 0.44 0.81 0.44
Item 5 (reversed) 2.71 0.81 0.11 0.79 0.04
Item 6 2.81 0.73 0.22 0.78 0.08
Item 7 1.42 0.82 0.51 0.76 0.71 0.58 0.80 0.73
Item 8 (reversed) 2.33 0.66 0.18 0.78 -0.07
Item 9 2.73 0.86 0.32 0.77 0.46 0.40 0.81 0.46
Item 10 2.24 0.92 0.52 0.76 0.43 0.48 0.81 0.38
Item 11 2.31 0.94 0.45 0.76 0.39 0.43 0.81 0.33
Item 12 2.96 0.83 0.45 0.76 0.37 0.42 0.81 0.31
Item 13 2.06 0.97 0.60 0.75 0.77 0.66 0.79 0.76
Item 14 3.11 0.82 0.10 0.79 0.07
Item 15 2.32 0.62 0.30 0.78 0.37 0.33 0.82 0.38