Table 1.
Characteristics of existing irritability questionnaires.
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| QUESTIONNAIRE | NUMBER OF ITEMS | REPORTING SOURCE | POPULATION | STATE OR TRAIT IRRITABILITY | STRUCTURE OF IRRITABILITY |
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| Buss-Durkee Hostility Inventory Irritability Subscale – Buss & Durkee, 1957 | 11 | Self-report | Adults | Trait | Unidimensional |
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| Children’s Hostility Inventory Irritability Subscale – Kazdin et al., 1987 | 6 | Parent- and teacher-report | Children | Trait | Unidimensional |
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| Irritability, Depression, Anxiety Scale (IDA) – Snaith et al., 1978 | 8 | Self-report | Adult patients suffering from affective disorders | State (past 2 days) | Bidimensional (i.e., Inwardly or Outwardly directed) |
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| Caprara Irritability Scale (CIS) – Caprara et al., 1985 | 30 | Self-report | Adults | Trait | Unidimensional |
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| Burns Irritability Apathy Scale – Burns et al., 1990 | 5 | Patients’ relative-report | Patients suffering from Huntington or Alzheimer disease | State (since the onset of the illness) | Unidimensional |
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| Irritability Questionnaire (IRQ) – Craig et al., 2008 | 21 | Self- and carer-report | Patients suffering from affective disorders, Huntington, or Alzheimer disease | State (past 2 weeks) | Multidimensional (i.e., Emotional, Cognitive, and Behavioral) |
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| Born Steiner Irritability Scale (BSIS) – Born et al., 2008 | 14 | Self- and observer- report | Women suffering from female-specific mood disorders (i.e., premenstrual, perinatal, and perimenopausal mood disorders) | State (past week) | Unidimensional |
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| I-Epi – Piazzini et al., 2011 | 18 | Self-report | Adult patients suffering from epilepsy | State | Multidimensional (i.e., Physical, Verbal, Temperamental, and Epilepsy functioning) |
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| Affective Reactivity Index (ARI) – Stringaris et al., 2012a | 7 | Self- and parent-report | Children and adolescents (clinical population and community) Preschoolers (Sugaya et al., 2021) |
State (past 6 months) | Unidimensional |
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| Brief Irritability Test (BITe) – Holtzman et al., 2015 | 5 | Self-report | Adults (clinical population and community) | State | Unidimensional |
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| The Cranky Thermometers – Melvin et al., 2018 | 2 | Self-report | Adolescents (clinical population and community) | State (current and past two weeks) | Unidimensional |
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