Table 5 Summary of Rasch analysis on WDEQ subscales

All 33 WDEQ items

1

Chisq = 1377.67, df = 297, p < .0001

1.4 (4.61)

-0.81 (1.77)

.95

23.3% CI:21.7–24.9

Lack of positive emotions (12 items)

2

Chisq = 164.94, df = 108, p < .0001

.41 (2.22)

-.44 (1.43)

.92

9.09% CI:7.5–10.7

Lack of positive emotions (8 items)

Remove items 1 22 4 14

3

Chisq = 88.43, df = 72, p = .09

.66 (.98)

-.43 (1.30)

.89

9.97% CI: 8.3–11.6

Lack of positive emotions (5 items)

Remove items 1 22 4 14 13 10 16

4

Chi sq= 74.16, df = 48, p = .004

.26 (1.05)

-.38 (1.06)

.82

4.84%^a

Negative emotions (8 items)

5

Chisq = 198.75, df = 71, p < .0001

.46 (3.31)

-3.8 (1.31)

.85

10.4% CI: 8.8–12.0

Negative emotions (5 items)

Remove items 24 25 27

6

Chisq = 63.38, df = 45, p = .04

.20 (1.93)

-.59 (1.38)

.84

5.28% CI: 3.6–6.9

Moment of birth (3 items)

7

Chisq = 45.42, df = 15, p < .0001

.14 (1.30)

-.66 (1.19)

.59

b

Social isolation (4 items)

8

Chisq = 42.91, df = 20. p = .002

.11 (1.20)

-.55 (1.19)

.43

b