Measuring Intolerance of Uncertainty After Acquired Brain Injury: Factor Structure, Reliability, and Validity of the Intolerance of Uncertainty Scale–12

Kusec, Andrea; Murphy, Fionnuala C.; Peers, Polly V.; Manly, Tom

doi:10.1177/10731911231182693

Cited by 3 publications

(1 citation statement)

References 80 publications

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“…Establishing test–retest reliability is important; a significant pre- to posttreatment difference in IU score might not reflect treatment effects but rather the unreliable structure of the measure across time. Moreover, the test–retest reliability of individual test items (vs. total score), assessed with ICC (Prinsen et al, 2018), has only been established for selected measures (IUS-12 [Kusec et al, 2023; Wilson et al, 2020], IUSC [Osmanağaoğlu et al, 2021], and ASC-ASD-U [Rodgers et al, 2016]) and needs assessing in other IU measures. Therefore, the use of other IU measures (IUI, URS, RULES, YIU-PR, and OBQ-PIU) should be considered in the context of a potentially unstable structure across time.…”

Section: Discussionmentioning

confidence: 99%

How is “intolerance of uncertainty” (IU) measured? A systematic review of assessment tools for IU and the psychometric properties of IU questionnaires.

Lin,

Mason,

Zhong

et al. 2024

Clinical Psychology: Science and Practice

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Objective: Intolerance of uncertainty (IU), a negative cognitive, emotional, and behavioral response to uncertainties, is a transdiagnostic trait associated with a wide range of mental health conditions. To clarify which IU assessment tools are best used in clinical or nonclinical populations, the present study aimed to systematically identify all IU measures and synthesis the psychometric properties of IU questionnaires. Method: Six databases including PubMed, Medline, Embase, PsycInfo, Web of Science, and Scopus were searched in two stages. All the evidence of psychometric properties were extracted, assessed, and summarized following the adapted COnsensus-based Standards for the selection of health Measurement INstruments guidelines by two independent reviewers. Results: Forty-seven questionnaire names relevant to the concepts of IU or uncertainty were identified in Stage 1. Fifty-four IU-relevant articles and seven IU questionnaires were identified in Stage 2. There was no best measure for IU that reported the best psychometric properties with the best quality measure. Most of the IU questionnaires only reported sufficient internal consistency and convergent validity with good quality. Discussion: Recommendations for the choice of IU questionnaire to be used in the general population, specific populations, different age groups, and assessing distinct aspects of IU are given. Future research could develop or adapt IU measures to address the issues around the psychometric properties raised in this study. Public Health Significance StatementIntolerance of uncertainty (IU)-extremely negative response to uncertainties-is a trait associated with poor mental health. Measuring IU accurately is vital for understanding a wide range of mental health conditions and for interventions. In this study, we identified all IU assessment tools and evaluated the psychometric properties of IU questionnaires (the most commonly used type of IU measure). Suggestions are given for clinicians and researchers to help them select the most suitable IU questionnaire for specific purposes, situations, and target populations.

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Section: Discussionmentioning

confidence: 99%

How is “intolerance of uncertainty” (IU) measured? A systematic review of assessment tools for IU and the psychometric properties of IU questionnaires.

Lin,

Mason,

Zhong

et al. 2024

Clinical Psychology: Science and Practice

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Worry: A key player in psychopathology after acquired brain injury?

Carmichael,

Ponsford

2024

Psychiatry Clin Neurosci

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Psychometric properties of the Arabic version of the intolerance of uncertainty scale: a multinational study

Chaaya,

Hallit,

Postigo

et al. 2024

BMC Psychol

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Introduction It is common for people to experience anxiety when contemplating their unknown future. Studies have shown that those who tend to worry more about their future are more likely to be intolerant of uncertainty. In order to study the way people from the Middle East tackle uncertainty, a valid and reliable scale is needed. In this context, the present study aimed to examine the psychometric properties of the Arabic version of the 12-item Intolerance of Uncertainty Scale (IUS-12) in a community sample of native Arabic–speaking participants from Lebanon, Egypt, and Kuwait. Methods A sample of 2038 university students answered the survey, with a mean age of 22.30 ± 4.15 years and 77.5% females. A Google Form link was dissipated among participants that included some demographic questions, the IUS-12 and the Depression, Anxiety and Stress Scale (DASS-8). Results Following the confirmatory factor analysis (CFA), a bi-dimensional model of the Arabic version of the IUS-12 was found. The scale showed an excellent internal reliability for the prospective anxiety (ω = 0.85 / α = 0.85) and inhibitory anxiety (ω = 0.87 / α = 0.87). Additionally, the results illustrated configural, metric, and scalar invariance across genders and countries. Furthermore, Egypt and Lebanon were seen to have statistically significant higher levels of inhibitory anxiety compared to Kuwait, while only Egypt showed statistically significant higher prospective anxiety compared to Kuwait. Finally, higher psychological distress was significantly and positively associated with higher prospective and inhibitory anxiety. Conclusion The results of this study provide support for the psychometric reliability and validity of the Arabic version of the IUS-12, allowing for its generalizability and suitability for use among individuals from different Arabic-speaking nations.

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Measuring Intolerance of Uncertainty After Acquired Brain Injury: Factor Structure, Reliability, and Validity of the Intolerance of Uncertainty Scale–12

Cited by 3 publications

References 80 publications

How is “intolerance of uncertainty” (IU) measured? A systematic review of assessment tools for IU and the psychometric properties of IU questionnaires.

How is “intolerance of uncertainty” (IU) measured? A systematic review of assessment tools for IU and the psychometric properties of IU questionnaires.

Worry: A key player in psychopathology after acquired brain injury?

Psychometric properties of the Arabic version of the intolerance of uncertainty scale: a multinational study

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