Table 1 Descriptives for EDs without OBE (n = 439) and EDs with OBE (n = 560) on background variables and all main measures, and independent t-test comparisons. Cohen’s d (small ≥ .02, medium ≥ .05, large ≥ .08) computed for p < .01 differences

23.46 (7.90)

16–66

25.83 (8.61)

16–72

− 4.487

<.001

.287

7.49 (8.12)

0–44

10.04 (8.70)

0–56

−4.739

<.001

.303

18.78 (3.91)

12.7–43.0

24.29 (6.24)

12.3–53.9

− 16.185

<.001

1.059

3.50 (1.35)

0–5.8

4.15 (0.99)

0.2–6

− 8.713

<.001

.545

32.43 (8.80)

11–55

32.63 (8.68)

11–55

−.355

.723

15.91 (6.16)

6–30

16.61 (6.25)

6–30

−1.747

.081

29.64 (10.47)

11–55

32.28 (10.42)

11–55

− 3.972

<.001

.253

20.33 (7.81)

8–40

22.15 (7.57)

8–40

−3.715

<.001

.236

98.31 (26.80)

38–176

103.66 (26.07)

38–169

−3.180

.002

.202

30.36 (17.35)

0–82

32.28 (16.23)

0–90

−1.803

.072

32.15 (21.85)

0–100

27.77 (18.17)

0–100

3.454

.001

.218

32.18 (21.20)

0–100

29.00 (18.23)

0–88

2.542

.011

42.41 (21.04)

0–100

39.71 (19.15)

0–95

2.114

.035

59.77 (17.55)

0–100

55.44 (18.06)

0–100

3.814

<.001

.243

56.48 (24.64)

0–100

59.20 (22.70)

0–100

−1.808

.071

41.01 (26.02)

0–100

44.71 (23.80)

0–100

−2.342

.019

36.59 (22.46)

0–100

42.33 (21.57)

0–98

−4.094

<.001

.261

−9.06 (39.37)

−92.5 – 99.2

−16.41 (34.01)

−89.5 – 84.3

3.162

.002

.200