BACKGROUND AND OBJECTIVES: The Intolerance of Uncertainty Scale (IUS) was developed for assessing reactions to ambiguous situations, uncertainty, and future events. The IUS has been validated in different languages, but equivocal factor structures, in combination with highly interrelated items and factors, resulted in a redundancy of the items of the English version. In the current study, the psychometric properties of the Dutch version of the IUS were examined, and compared with the shortened 12-item version (IUS-12). METHODS: Confirmatory factor analyses were used to investigate different factor structures of both the full and short version of the IUS. RESULTS: Results indicated that the IUS-12 model with two factors (Prospective Anxiety and Inhibitory Anxiety) provides the best fit. The reduced measure has equally good internal consistency, and is highly correlated with the full version. LIMITATIONS: Future research could investigate whether the current findings generalize to clinical populations. CONCLUSION: To summarize, the usage of the short 12-item version of the IUS should be encouraged in future research concerning intolerance of uncertainty.
BACKGROUND AND OBJECTIVES: The Intolerance of Uncertainty Scale (IUS) was developed for assessing reactions to ambiguous situations, uncertainty, and future events. The IUS has been validated in different languages, but equivocal factor structures, in combination with highly interrelated items and factors, resulted in a redundancy of the items of the English version. In the current study, the psychometric properties of the Dutch version of the IUS were examined, and compared with the shortened 12-item version (IUS-12). METHODS: Confirmatory factor analyses were used to investigate different factor structures of both the full and short version of the IUS. RESULTS: Results indicated that the IUS-12 model with two factors (Prospective Anxiety and Inhibitory Anxiety) provides the best fit. The reduced measure has equally good internal consistency, and is highly correlated with the full version. LIMITATIONS: Future research could investigate whether the current findings generalize to clinical populations. CONCLUSION: To summarize, the usage of the short 12-item version of the IUS should be encouraged in future research concerning intolerance of uncertainty.
Authors: Willie Hale; Miranda Richmond; Janet Bennett; Tiffany Berzins; Alexander Fields; David Weber; Mark Beck; Augustine Osman Journal: J Pers Assess Date: 2015-11-05
Authors: Niki M Medendorp; Marij A Hillen; Leonie N C Visser; Cora M Aalfs; Floor A M Duijkers; Klaartje van Engelen; Margreet G E M Ausems; Senno Verhoef; Anne M Stiggelbout; Ellen M A Smets Journal: Eur J Hum Genet Date: 2021-01-12 Impact factor: 5.351
Authors: Boris van Passel; Unna Danner; Alexandra Dingemans; Eric van Furth; Lot Sternheim; Annemarie van Elburg; Agnes van Minnen; Marcel van den Hout; Gert-Jan Hendriks; Daniëlle Cath Journal: BMC Psychiatry Date: 2016-11-10 Impact factor: 3.630