From: Validation of the Arabic version of the “self-evaluation of negative symptoms” scale (SNS)
Factor | Item number | Diminished emotional range | Avolition | Alogia | Social withdrawal | Anhedonia |
---|---|---|---|---|---|---|
There are many happy or sad things in life but I don’t feel concerned by them | 6 | 0.755 | ||||
Watching a sad or happy film, reading or listening to a sad or happy story does not especially make me want to cry or laugh | 7 | 0.715 | ||||
It is difficult for people to know how I feel | 8 | 0.659 | ||||
People say I’m not sad or happy and that I’m not often angry | 5 | 0.647 | ||||
I don’t particularly try to contact and meet friends (letters, telephone, text messaging, etc.) | 4 | 0.552 | ||||
With friends and family, I want to talk about things but it doesn’t come out | 12 | 0.514 | ||||
It’s hard to stick to doing things on an everyday regular basis | 14 | 0.855 | ||||
There are many things I don’t do through lack of motivation or because I don’t feel like it | 15 | 0.789 | ||||
I know there are things I must do (get up or wash myself for example) but I have no energy | 16 | 0.764 | ||||
I find it difficult to meet the objectives I set myself | 13 | 0.589 | ||||
I find it 10 times harder to talk than most people do | 10 | 0.818 | ||||
People often say that I don’t talk much | 11 | 0.796 | ||||
I don’t have as much to talk about as most people | 9 | 0.784 | ||||
I prefer to be alone in my corner | 1 | 0.871 | ||||
I’m better off alone, because I feel uncomfortable when anyone is near me | 2 | 0.847 | ||||
I’m not interested in going out with friends or family | 3 | 0.614 | ||||
When I imagine doing one thing or another, I don’t feel any particular pleasure in the idea | 19 | 0.876 | ||||
I find it hard to take pleasure even when doing things I have chosen to do | 18 | 0.873 | ||||
I am not interested in having sex | 20 | 0.450 | ||||
I don’t take any great pleasure in talking to people | 17 | 0.425 | ||||
Percentage of variances explained | 31.90 | 10.57 | 8.95 | 7.62 | 6.97 |