Table 7 Kruskal-Wallis Test with pairwise comparisons for the boy sample divided into three groups (Group 0 = 0 “yes”-answers to the SCOFF scale, Group 1 = 1 “yes” answer to the SCOFF scale and Group 2 = 2 or more “yes” answers to the SCOFF scale)

Kruskal –Wallis Test

N

Mdn

M (SD)

Pairwise comparisons

z

ES

EDE-Q Total

H(2) = 71.87***

0 = 383

.13

.28(.44)

0–1

−5.03***

.24

1 = 70

.45

.72(.79)

0–2+

−7.26***

.36

2 + = 23

1.71

2.06(1.35)

1–2+

−3.77***

.39

476

EDE-Q Restraint

H(2) = 65.99***

0 = 419

.00

.27(.70)

0–1

−4.83***

.22

1 = 76

.20

.76(1.25)

0–2+

−6.96***

.33

2 + = 26

1.4

1.76(1.60)

1–2 +

−3.55**

.35

521

EDE-Q Eating concern

H(2) = 84.01***

0 = 420

.00

.11(.35)

0–1

−6.18***

.28

1 = 77

.20

.37(.53)

0–2+

−7.30***

.35

2 + = 23

1.2

1.31(1.23)

1–2 +

−3.35*

.34

520

EDE-Q Weight concern

H(2) = 68.03***

0 = 415

.20

.39(.65)

0–1

−3.88***

.18

1 = 77

.60

.84(.97)

0–2+

−7.61***

.36

2 + = 26

2.8

2.75(1.65)

1–2 +

−4.67***

.46

518

EDE-Q Shape concern

H(2) = 62.51***

0 = 408

.13

.43(.70)

0–1

−4.29***

.20

1 = 74

.5

.92(.98)

0–2+

−7.03***

.34

2 + = 27

2.25

2.59(1.85)

1–2 +

−3.80***

.38

509