Table 1 Confirmatory factor analyses of the original six-factor structure and the five-factor structure (EFA-version)

Self-care

1

Wash himself

0.891

0.890

2

Brush teeth

0.944

0.942

3

Change clothes

0.903

0.903

4

Clean room

0.715

0.720

5

Cleaning duty

0.629

0.627

6

Day night rhythm

0.598

0.597

7

Dress himself

0.428

Social behavior

8

Present on ward

0.754

0.765

9

Group activities

0.823

0.828

10

Contact others

0.815

0.818

11

Initiate conversation

0.795

0.785

12

Talking experiences

0.688

0.661

13

Sociably present

0.727

0.738

Oppositional behavior

14

Angry, irritated

0.793

0.775

15

Verbally aggressive

0.904

0.917

16

Utter threats

0.786

0.792

17

Pestering

0.411

18

Lying

0.710

0.755

19

Sexual remarks

0.440

20

Split the staff

0.708

0.723

21

Macho behavior

0.589

22

Behaving overactive

0.590

23

Recalcitrance

0.676

0.651

Insight

24

Assertive criticism*

0.658

25

Talk about offense

0.337

26

Guilt toward victims

0.365

27

Seriousness problems

0.732

Verbal skills

24

Assertive criticism*

0.649

28

Understand language

0.812

0.812

29

Talking audibly

0.688

0.688

30

Speaking Dutch

0.403

0.403

Distress

31

Anxious, tense

0.854

0.982

32

Depressed, down

0.679

0.762

33

Stable mood

0.859

34

Helpless, hopeless

0.613

0.612

35

Thoughts about suicide

0.515

0.617

CFI

0.81

0.90

TLI

0.85

0.93

RMSEA

0.14

0.114

% of explained variance

49.0

59.6