Background Data on the reliability and validity of assessments for irritability, particularly
behavioral paradigms, are limited. This study examined the test-retest reliability and validity …

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 …

Abstract Objective The Affective Reactivity Index (ARI) is widely used to assess young
people's irritability symptoms, but youth and caregivers often diverge in their assessments …

Irritability is ubiquitous in child and adolescent psychopathology. This study aimed to
determine if the Affective Reactivity Index (ARI), a measure of irritability, could be used to …

Background: Research on youth irritability has proliferated in recent years, largely facilitated
by items from existing measures and by key new instruments like the Affective Reactivity …

Objectives: Irritability is among the most bothersome emotional symptoms in children. It often
leads to mental health services referral, significant impairment, and distress to their families …

Irritability is impairing in youth and is the core feature of disruptive mood dysregulation
disorder (DMDD). Currently, there are no established clinician-rated instruments to assess …

Objective Irritability, typically defined as a proneness to anger, particularly in response to
frustration, falls at the intersection of emotion and disruptive behavior. Despite well-defined …

Irritability refers to a proneness for anger, and is a symptom of internalizing and externalizing
psychopathology. Since irritability is associated with significant cross-sectional and …

Irritability is a substrate of more than one dozen clinical syndromes. Thus, identifying when it
is atypical and interfering with functioning is crucial to the prevention of mental disorder in …