Irritability‚ Depression‚ Anxiety Scale (IDA)

1. I feel cheerful.
Yes‚ definitely/ Yes‚ sometimes/ No‚ not much/ No‚ not at all
2. I can sit down and relax quite easily.
Yes‚ definitely/ Yes‚ sometimes/ No‚ not much/ No‚ not at all
3. My appetite is:
Very poor/ Fairly poor/ Quite good/ Very good
4. I lose my temper and shout and snap at others.
Yes‚ definitely/ Yes‚ sometimes‚ No‚ not much/ No‚ not at all
5. I can laugh and feel amused.
Yes‚ definitely/ Yes‚ sometimes/ No‚ not much/ No‚ not at all
6. I feel I might lose control and hit someone.
Sometimes/ Occasionally/ Rarely/ Never
7. I have an uncomfortable feeling like butterflies in my stomach.
Yes‚ definitely/ Yes‚ sometimes/ No‚ not much/ No‚ not at all
8. The thought of hurting myself occurs to me
Sometimes/ Not very often/ Hardly ever/ Not at all
9. I’m awake before I need to get up.
For 2 hours or more/ For about 1 hour/ For less than1 hour/ Not at all. I sleep until it is time to get up
10. I feel tense or wound up.
Yes‚ definitely/ Yes‚ sometimes/ No‚ not much/ No‚ not at all
11. I feel like harming myself
Yes‚ definitely/ Yes‚ sometimes/ No‚ not much/ No‚ not at all
12. I’ve kept up my old interests
Yes‚ most of them/ Yes‚ some of them/ No‚ not many of them/ No‚ none of them
13. I am patient with other people.
All the time/ Most of the time/ Some of the time/ Hardly ever
14. I get scared and panicky for no good reason.
Yes‚ definitely/ Yes‚ sometimes/ No‚ not much/ No‚ not at all
15. I get angry with myself or call myself names
Yes‚ definitely/ Yes‚ sometimes/ Not often/ No‚ not at all
16. People upset me so that I feel like slamming doors or banging about.
Yes‚ often/ Yes‚ sometimes/ Only occasionally/ Not at all
17. I can go out on my own without feeling anxious.
Yes‚ always/ Yes‚ sometimes/ No‚ not often/ No‚ I never can
18. Lately I have been getting annoyed with myself
Very much so/ Rather a lot/ Not much/ Not at all
 
The overall scale comprises nine items. Alpha reliability is .89
 
Depression – Questions 1‚3*‚5‚9* and 12‚ Anxiety – Questions 2‚7*‚10*‚14* and 17‚ Outward directed irritability – Questions 4*‚6*‚13 and 16*‚ Inward directed irritability – Questions 8*‚11*‚15* and 18*
* reverse cod
 
 

Snaith‚ R. P.‚ Constantopoulos‚ A. A.‚ Jardine‚ M. Y.‚ & McGuffin‚ P. (1978). A clinical scale for the self-assessment of irritability. British Journal of Psychiatry‚ 132‚ 163-171.

Snaith‚ R. P.‚ Taylor‚ C. M. (1985).Rating scales for depression and anxiety: A current perspective. Br. J. clin. Pharmac. (1985)‚ 19‚ 17S-20S