Table 2.

Reliability of the Dutch Eating Behavior Questionnaire (DEBQ).

DEBQ	Q1 score	Q2 score	rho (p value)	alpha
Item 1	3 (1 to 3)	2 (1 to 3)	0.72 (<0.001)	0.92
Item 2	3 (3 to 4)	3 (3 to 4)	0.61 (<0.001)	0.92
Item 3	3 (3 to 4)	2 (2 to 3)	0.65 (<0.001)	0.92
Item 4	3 (2 to 4)	3 (2 to 4)	0.71 (<0.001)	0.92
Item 5	3 (1 to 4)	2 (1 to 3)	0.69 (<0.001)	0.91
Item 6	3 (3 to 4)	3 (3 to 4)	0.48 (<0.001)	0.92
Item 7	3 (1 to 4)	3 (1 to 3)	0.74 (<0.001)	0.92
Item 8	3 (1 to 3)	3 (2 to 3)	0.62 (<0.001)	0.91
Item 9	4 (3 to 4)	3 (3 to 4)	0.49 (<0.001)	0.92
Item 10	2 (1 to 3)	2 (1 to 3)	0.67 (<0.001)	0.92
Item 11	3 (1 to 3)	3 (2 to 3)	0.64 (<0.001)	0.92
Item 12	3 (3 to 4)	3 (3 to 4)	0.48 (<0.001)	0.92
Item 13	2 (1 to 3)	2 (1 to 3)	0.74 (<0.001)	0.92
Item 14	2 (1 to 3)	2 (2 to 3)	0.59 (<0.001)	0.92
Item 15	3 (2 to 4)	3 (2 to 3)	0.52 (<0.001)	0.92
Item 16	2 (1 to 3)	2 (1 to 3)	0.57 (<0.001)	0.91
Item 17	3 (2 to 3)	3 (2 to 3)	0.52 (<0.001)	0.92
Item 18	3 (2 to 3)	3 (2 to 3)	0.48 (<0.001)	0.92
Item 19	3 (1 to 3)	3 (2 to 3)	0.72 (<0.001)	0.92
Item 20	3 (1 to 3)	2 (1 to 3)	0.60 (<0.001)	0.91
Item 21	3 (2 to 4)	3 (2 to 3)	0.47 (<0.001)	0.92
Item 22	3 (1 to 3)	3 (1 to 3)	0.75 (<0.001)	0.92
Item 23	2 (1 to 3)	2 (1 to 3)	0.65 (<0.001)	0.91
Item 24	3 (2 to 4)	3 (1 to 4)	0.54 (<0.001)	0.92
Item 25	2 (1 to 3)	2 (1 to 3)	0.76 (<0.001)	0.92
Item 26	2 (1 to 3)	2 (1 to 3)	0.73 (<0.001)	0.91
Item 27	2 (1 to 3)	2 (1 to 3)	0.49 (<0.001)	0.92
Item 28	2 (1 to 3)	2 (1 to 3)	0.67 (<0.001)	0.91
Item 29	2 (1 to 3)	2 (1 to 3)	0.71 (<0.001)	0.92
Item 30	1 (1 to 2)	2 (1 to 2)	0.60 (<0.001)	0.91
Item 31	2 (1 to 3)	3 (1 to 3)	0.84 (<0.001)	0.92
Item 32	2 (1 to 3)	2 (1 to 3)	0.56 (<0.001)	0.91
Item 33	3 (3 to 4)	3 (2 to 4)	0.44 (<0.001)	0.92

Values are median (25th to 75th percentile). Alpha, Cronbach’s alpha coefficient; rho, Spearman correlation coefficient.