Table 2 Item fit residuals, item thresholds and standard errors from the BAT23 analysis (bold indicates reversed thresholds), random sample 1 (n = 800) drawn from the Swedish Midwife Survey

EX1

-2.74

-4.61 (0.081)

-2.21 (0.080)

-0.59 (0.111)

2.20 (0.335)

EX2

8.55

-5.32 (0.090)

-3.05 (0.078)

-1.36 (0.092)

0.75 (0.172)

EX3

-1.06

-5.00 (0.084)

-2.69 (0.078)

-0.53 (0.108)

1.00 (0.214)

EX4

-0.29

-3.63 (0.077)

-1.62 (0.087)

0.21 (0.142)

2.67 (0.495)

EX5

-1.53

-4.59 (0.080)

-2.25 (0.080)

-0.34 (0.117)

1.18 (0.239)

EX6

-4.87

-2.89 (0.076)

-0.84 (0.101)

0.69 (0.183)

3.24 (0.751)

EX7

-2.06

-3.34 (0.078)

-1.59 (0.089)

-0.14 (0.132)

1.62 (0.302)

EX8

-1.58

-5.22 (0.087)

-2.83 (0.078)

-1.13 (0.097)

0.95 (0.191)

MD1

-1.58

-3.77 (0.076)

-1.24 (0.091)

0.24 (0.150)

1.91 (0.377)

MD2

4.29

-2.51 (0.078)

-0.75 (0.105)

0.56 (0.181)

2.35 (0.509)

MD3

-0.03

-1.28 (0.086)

0.23 (0.148)

1.07 (0.274)

3.76 (1.184)

MD4

1.86

-1.12 (0.089)

0.04 (0.144)

1.04 (0.266)

1.86 (0.549)

MD5

2.90

-0.84 (0.094)

-0.02 (0.148)

1.04 (0.266)

3.00 (0.847)

CI1

-2.04

-3.91 (0.075)

-0.89 (0.095)

1.62 (0.245)

3.08 (0.907)

CI2

-3.39

-3.61 (0.075)

-0.92 (0.096)

1.77 (0.259)

4.23 (1.544)

CI3

-0.98

-3.79 (0.075)

-1.07 (0.093)

0.92 (0.186)

3.39 (0.833)

CI4

-2.99

-3.81 (0.076)

-0.75 (0.098)

1.41 (0.232)

4.43 (1.539)

CI5

1.30

-2.65 (0.079)

0.95 (0.158)

3.71 (0.924)

1.99 (1.428)

EI1

1.17

-2.22 (0.079)

0.58 (0.146)

3.46 (0.739)

5.85 (6.555)

EI2

-1.48

-1.57 (0.083)

0.10 (0.137)

1.79 (0.339)

2.82 (0.973)

EI3

1.87

-3.02 (0.076)

-0.78 (0.101)

1.03 (0.205)

7.68 (6.740)

EI4

-2.42

-1.34 (0.085)

0.37 (0.152)

1.42 (0.320)

6.96 (5.891)

EI5

2.07

-1.86 (0.080)

0.24 (0.137)

1.92 (0.363)

6.19 (4.523)