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Table 2 Reliability and construct validity of the SQoL in the homeless sample (MARS)

From: Relevance of a subjective quality of life questionnaire for long-term homeless persons with schizophrenia

Dimension/Index

(Number of items)

Mean (SD)

Item internal consistency min-max

Item discriminant validity min-max

Floor

% (%inia)

Ceiling

% (%inia)

Alpha

Infit

min-max

PsWb (10)

59.2 (26.3)

0.41–0.64

−0.04-0.66

19.8 (2.1)

41.6 (6.3)

0.86

0.75-1.32

SEb (6)

55.2 (20.7)

0.42–0.70

−0.15–0.68

13.5 (2.5)

4.2 (4.5)

0.80

0.73–1.24

RFab (5)

38.4 (28.4)

0.75–0.87

−0.13–0.64

30.9 (6.3)

1.1 (4.8)

0.92

0.65–1.43

RFrb (5)

53.3 (23.1)

0.61–0.74

−0.11–0.35

12.3 (5.9)

3.2 (3.7)

0.86

0.75–1.11

REb (5)

49 (19.9)

0.39–0.49

−0.12–0.51

12.7 (3.6)

14.7 (1.6)

0.70

0.93–1.17

PhWb (4)

45.7 (22.8)

0.36–0.68

−0.09–0.49

18.2 (7.0)

2.7 (3.5)

0.77

0.72–1.36

AUb (4)

61 (19.3)

0.14–0.57

−0.20–0.48

12.2 (4.9)

4.9 (4.4)

0.64

0.62–1.49

SLb (2)

40.9 (26.7)

0.37

−0.06–0.38

29.1 (18.7)

1.8 (8.8)

0.54

0.88–1.10

Indexb (41)

50.3 (14.1)

NA

NA

NA

NA

0.79

NA

  1. expliciter les noms des dimensions
  2. a% ini : Floor/Ceiling effects on dimension scores in the not homeless reference population (SQoL-41 validation) btheorical min = 0 and theorical max = 100