Table 4 Psychometric characteristics of the QLiS subscale (results from study in step one; n = 203), validation study in step 6 (n = 135) and retest-study in step 6 (n = 49)

social contacts There are too few people visiting me.

5

4.42 (±2.22) 4.47 (±2.24)

98.2 96.4

3.4/1.5 4.4/1.5

.71.63

n.a..73

appreciation by others I feel respected by other people.

4

6.47 (±2.36) 6.37 (±2.13)

100 97.7

2.5/9.9 1.5/5.9

.78 .70

n.a. .72

relationship to family My family provides me with backing and strength.

3

6.15 (±2.96) 5.90 (±2.55)

100 100

6.9/17.2 3.0/8.1

.82 .71

n.a. .82

appraisal of pharmacotherapy I feel no interests due to my medication.

6

5.60 (±2.25) 5.97 (±2.11)

100 100

2.0/3.9 0.7/2.2

.77 .71

n.a. .79

appraisal of psychopathological symptoms I suffer from inner unrest.

6

5.16 (±2.53) 5.58 (±2.40)

100 96.7

2.5/3.4 0.7/2.2

.84 .82

n.a. .76

cognitive functioning I feel alert and can think straight.

5

5.28 (±2.37) 5.49 (±2.31)

100 98.5

2.0/3.9 0.7/1.5

.81 .79

n.a. .83

abilities to manage daily living I feel dependent on others.

4

6.23 (±2.38) 6.42 (±2.43)

100 100

1.0/10.3 0.7/14.1

.75 .74

n.a. .82

appraisal of accommodation/housing I have sufficient opportunities to retreat to.

5

6.04 (±2.23) 6.14 (±2.17)

100 100

1.5/5.9 0.7/3.7

.73 .73

n.a. .77

financial situation I do not have enough money for ordinary things, such as decent clothes, cigarettes.

4

5.17 (±2.59) 4.72 (±2.65)

100 100

3.4/4.4 5.2/3.7

.75 .77

n.a. .87

leading a “normal“ life I am leading a “normal” life like everyone else is.

3

4.52 (±2.58) 4.56 (±2.60)

97.7 96.7

6.9/5.4 3.7/3.7

.70 .70

n.a. .81

confidence I have a great deal of self-confidence.

4

5.73 (±2.42) 5.74 (±2.28)

100 100

2.0/6.9 1.5/3.7

.75 .74

n.a. .76

global life-satisfaction I lead a happy life.

3

4.26 (±2.56) 4.64 (±2.75)

100 100

10.0/3.4 8.9/4.4

.80 .88

n.a. .82