Conflict of interest statement: No conflicts declared.
The Affective Reactivity Index: a concise irritability scale for clinical and research settings
Article first published online: 10 MAY 2012
© 2012 The Authors. Journal of Child Psychology and Psychiatry © 2012 Association for Child and Adolescent Mental Health
Journal of Child Psychology and Psychiatry
Special Issue: Mood dysregulation in child and adolescent psychopathology issue
Volume 53, Issue 11, pages 1109–1117, November 2012
How to Cite
Stringaris, A., Goodman, R., Ferdinando, S., Razdan, V., Muhrer, E., Leibenluft, E. and Brotman, M. A. (2012), The Affective Reactivity Index: a concise irritability scale for clinical and research settings. Journal of Child Psychology and Psychiatry, 53: 1109–1117. doi: 10.1111/j.1469-7610.2012.02561.x
Re-use of this article is permitted in accordance with the Terms and Conditions set out at http://wileyonlinelibrary.com/onlineopen#OnlineOpen_Terms
- Issue published online: 15 OCT 2012
- Article first published online: 10 MAY 2012
- Accepted for publication: 26 March 2012
- Mood dysregulation;
- Affective Reactivity Index;
Background: Irritable mood has recently become a matter of intense scientific interest. Here, we present data from two samples, one from the United States and the other from the United Kingdom, demonstrating the clinical and research utility of the parent- and self-report forms of the Affective Reactivity Index (ARI), a concise dimensional measure of irritability.
Methods: The US sample (n = 218) consisted of children and adolescents recruited at the National Institute of Mental Health meeting criteria for bipolar disorder (BD, n = 39), severe mood dysregulation (SMD, n = 67), children at family risk for BD (n = 35), or were healthy volunteers (n = 77). The UK sample (n = 88) was comprised of children from a generic mental health setting and healthy volunteers from primary and secondary schools.
Results: Parent- and self-report scales of the ARI showed excellent internal consistencies and formed a single factor in the two samples. In the US sample, the ARI showed a gradation with irritability significantly increasing from healthy volunteers through to SMD. Irritability was significantly higher in SMD than in BD by parent-report, but this did not reach significance by self-report. In the UK sample, parent-rated irritability was differentially related to emotional problems.
Conclusions: Irritability can be measured using a concise instrument both in a highly specialized US, as well as a general UK child mental health setting.