Table 3 Magnitude of effect sizes

Trivial: 0–3 points

59 (66 %)

6 (19 %)

Small: 3 to 7 points

27 (30 %)

22 (69 %)

Medium: 10 to 15 points

2 (2 %)

2 (6 %)

Large: >15 points

2 (2 %)

2 (6 %)

Total

90

32

Odds ratio

0.95 – 1.05 or 1.0 – 1.05

35 (39 %)

0

0.90 – 0.95 or 1.05 – 1.10

33 (37 %)

7 (33 %)

0.80 – 0.90 or 1.10 – 1.20

19 (21 %)

11 (52 %)

<0.80 or > 1.20

3 (3 %)

3 (14 %)

Total

90

31