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Table 4 Parameter estimates from item response theory analysis according to the Psychiatric Inpatient Patient Experience Questionnaire – Continuous Electronic Measurement scales (n = 1772)

From: Reliability and validity of the Psychiatric Inpatient Patient Experience Questionnaire – Continuous Electronic Measurement (PIPEQ-CEM)

 

a

b1

b2

b3

b4

S–χ2

p

Patient-centred interactions

  8. Have you had enough time for discussions and contact with the therapists/staff?

1.66

–2.33

–1.93

–0.76

0.69

98.48

0.079

  9. Do you find that the therapists/staff have understood your situation?

2.32

–2.11

–1.63

–0.61

0.51

75.69

0.300

  10. Have you had the opportunity to tell the therapists/staff about important aspects of your condition?

1.17

–2.48

–2.36

–0.99

0.61

146.48

 < 0.001

  12. Do you find that the therapists/staff have prepared you for the time after discharge?

1.34

–2.07

–1.35

–0.17

1.19

130.67

0.011

  13. Do you find that the treatment has been adapted to your situation?

2.68

–1.93

–1.49

–0.39

0.80

73.27

0.340

  14. Have you had influence on your choice of treatment?

1.09

–1.73

–1.36

0.15

1.47

165.81

 < 0.001

  17. Has the institution provided you with sufficient information on your mental health/diagnosis?

1.42

–1.80

–1.28

–0.12

1.10

117.46

0.059

  18. Has the institution provided you with sufficient information on the treatment options available to you?

1.30

–1.84

–1.26

0.01

1.26

108.45

0.201

Outcomes

  25. Are the help and the treatment you are receiving at the institution helping you better understand your mental health issues?

2.42

–1.80

–1.23

–0.14

0.95

80.87

0.359

  26. Are the help and the treatment you are receiving at the institution helping you better cope with your mental health issues?

2.35

–1.70

–1.30

0.03

1.18

70.74

0.735

  27. Are the help and the treatment you are receiving at the institution giving you confidence that life will be better after discharge?

1.66

–1.59

–1.38

0.12

1.08

127.21

0.005

  28. Overall, have the help and the treatment you have received at the institution been satisfactory?

2.98

–2.04

–1.54

–0.55

0.74

75.96

0.127

  29. Overall, to what extent have you benefitted from the treatment at the institution?

2.18

–2.00

–1.46

–0.13

0.91

84.16

0.244

Value ranges

1.09 to 2.98

1.59 to2.48

1.23 to2.36

0.99 to 0.15

0.51 to 1.47

  

Structure and facilities

  4. Was the way you were welcomed to the institution satisfactory?

1.34

–1.90

–2.09

–1.29

0.11

57.27

 < 0.001

  19. Have you felt safe at the institution?

1.86

–2.20

–2.04

–1.15

0.07

27.04

0.104

  20. Has the range of activities available at the institution been satisfactory?

0.89

–2.30

–1.68

–0.05

1.21

31.43

0.113

  22. Have you been satisfied with the level of privacy available?

1.35

–1.94

–1.92

–0.87

0.58

33.54

0.041

Value ranges

0.89 to 1.86

1.90 to2.30

1.68 to2.09

0.05 to1.29

0.07 to 1.21

  
  1. a Generalized partial credit model. a: discrimination; b1–b4: thresholds. S–χ2: item-fit statistic, with p < 0.05 indicating a lack of fit