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August 27, 2026Psychological AssessmentOpen Access

The Affective Reactivity Index in Australian children: Psychometric properties and measurement invariance across clinical and community samples.

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Authors

TBTorunn BriersGSGrace SandersJNJaimie C. Northam

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Overview

Psychometric study reveals robust validity and reliability of the Affective Reactivity Index in children, highlighting its clinical utility for early irritability screening.

Key Points

  • To examine the psychometric properties and measurement invariance of the Affective Reactivity Index-Parent Version across community and clinical samples of Australian children.
  • Assessed a representative community cohort (n = 1,371; 47.05% female) and a clinic-referred cohort of children with conduct problems (n = 299; 23.7% female) aged 4–12 years in Australia.
  • Evaluated internal consistency, test-retest reliability, convergent and concurrent validity, caregiver acceptability, measurement invariance across settings and age bands, and psychometric network structure.
  • The Affective Reactivity Index-Parent Version demonstrated strong internal consistency, test-retest reliability, convergent validity, and caregiver acceptability across both cohorts.
  • Metric invariance was supported across clinical and community samples, whereas full scalar invariance was established between early (4–7 years) and middle (8–12 years) childhood within the community sample.
  • Network analysis revealed a single symptom cluster in both cohorts, with frequent anger and losing temper easily emerging as the most central items.

Cite This Study

Briers et al. (2026) studied this question.

synapsesocial.com/papers/6a8fe96710c91c1e92620f40https://doi.org/10.1037/pas0001498
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Diagnostic- and age-based measurement invariance of irritability in youths2026
  2. 2Psychometric properties and cross‐cultural adaptation of the Japanese version of the Affective Reactivity Index: A community‐based study of adolescent irritability2025 · 2 citations
  3. 3Factors Associated with High Parent- and Youth-Rated Irritability Score in Early-Onset Mood Disorders: A Cross-Sectional Study with the Affective Reactivity Index (ARI)2024 · 4 citations
  4. 4Development and Psychometric Evaluation of the Adolescent and Young Adults Trait-State Irritability Reactivity and Regulation Inventory (IRRIT-IJ)2026
  5. 5Irritability in children: Promising advances in measurement and treatment2024