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. 2020 Jan 28;10(3):e01555. doi: 10.1002/brb3.1555

Table 3.

Reliability and validity of the LT‐EDE‐Q 6.0

  Test‐retest reliability (ICC) Cronbach's α Interitem correlationa Divergent validityb
Restraint subscale 0.66 0.83 0.49 0.31
Eating concern subscale 0.84 0.75 0.37 0.33
Shape concern subscale 0.91 0.88 0.50 0.43
Weight concern subscale 0.90 0.83 0.49 0.40
LT‐EDE‐Q 6.0 general scale 0.90 0.94 0.40  
Essential behavioral features of EDs during the preceding 28 days
Episodes of binge eating (LT‐EDE‐Q 6.0 item 13) 0.90      
Episodes of binge eating distinguished by loss of control (LT‐EDE‐Q 6.0 item 14) 0.41      
Occurrence in days of binge eating distinguished by loss of control (LT‐EDE‐Q 6.0 item 15) 0.86      
Episodes of self‐induced vomiting (LT‐EDE‐Q 6.0 item 16)      
Episodes of use of laxatives (LT‐EDE‐Q 6.0 item 17)      
Episodes of excessive exercising (LT‐EDE‐Q 6.0 item 18) 0.84      

ICC = intraclass correlation coefficient; for the items 16 and 17 ICC cannot be calculated because of no response variation. LT‐EDE‐Q 6.0 general scale = the combined subscales of the Lithuanian version of Eating Disorder Examination Questionnaire.

a

Mean value of Pearson correlations coefficients between items within the assigned subscale.

b

Mean value of Pearson correlations coefficients between items in subscales other than their own.