Table 3 Overview of effect sizes of all included studies

N

Cohen’s d

Effect size

 Accurso et al. (2019) [44]

EDE Interview (global score)

11

−0.12

small

 Fischer et al. (2015) [46]

EDE Interview (global score)

7

−0.63

moderate

 Johnston et al. (2015) [47]

EDE-Q (global score)

33

−0.68

moderate

 Mazzeo et al. (2016) [38]

EDE-Q (global score)

12

−0.50

moderate

 Murray et al. (2015) [48]

EDE-Q (global score)

35

−1.53

large

 Peterson et al. (2019) [49]

EDE-Q (global score)

12

−0.26

small

 Timko et al. (2015) [53]

EDE Interview (global score)

32

−0.62

moderate

N

Cohen’s d

Effect size

 Baudinet et al. (2020) [45]

EDI-3 (subscales)

105

−0.07 to − 0.39

small

 Salbach et al. (2007) [54]

EDI-2

31

−0.02 to − 0.63

small – moderate

 Salbach-Andrae et al. (2008) [51]

EDI-2 (subscales)

12

−0.42 to −3.03

small – large

 Salbach-Andrae et al. (2009) [52]

prä-post EDI-2 (subscales)

16

−0.36 to −1.56

small –large

SIAB (subscales)

16

−0.08 to −2.29

small – large

DBT vs. WCG EDI-2 (subscales) ^a

31

0.70 to 1.47

large

SIAB (subscales) ^a

31

1.44 to 1.85

moderate – large

 Schneider et al. (2010) [50]

EDI-2 (subscales)^bc

41

0.38 to 0.40

small

SIAB (subscales)^c

41

0.21 to 2.14

small – large