The Intolerance of Uncertainty Index: Replication and Extension with an English Sample

Autor/inn/en	Carleton, R. Nicholas; Gosselin, Patrick; Asmundson, Gordon J. G.
Titel	The Intolerance of Uncertainty Index: Replication and Extension with an English Sample
Quelle	In: Psychological Assessment, 22 (2010) 2, S.396-406 (11 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1040-3590
DOI	10.1037/a0019230
Schlagwörter	Measures (Individuals); English; Psychometrics; Anxiety; Depression (Psychology); Anxiety Disorders; Validity; Factor Analysis; Factor Structure; Regression (Statistics); Foreign Countries; Canada; Beck Depression Inventory + Suchen Sie Ihr Suchwort? Messdaten; English language; Englisch; Psychometry; Psychometrie; Angst; Gültigkeit; Faktorenanalyse; Faktorenstruktur; Regression; Regressionsanalyse; Ausland; Kanada
Abstract	Intolerance of uncertainty (IU) is related to anxiety, depression, worry, and anxiety sensitivity. Precedent IU measures were criticized for psychometric instability and redundancy; alternative measures include the novel 45-item measure (Intolerance of Uncertainty Index; IUI). The IUI was developed in French with 2 parts, assessing general unacceptability of uncertainty (15 items, Part A) and manifestations of uncertainty approximating more common anxiety disorder symptoms (30 items, Part B). The psychometric stability of the back-translated English items of the IUI as well as the incremental variance of Parts A and B remain to be assessed. The current study involved 2 samples of English-speaking community participants (n = 437 and n = 309; 73% women and 27% men) who completed the IUI and several related measures. Exploratory and confirmatory factor analyses suggested a refinement of IUI items as well as a unitary structure for Part A and a 3-factor structure for Part B. Regression results suggested Parts A and B each provide incremental validity in measures of worry, generalized anxiety disorder symptoms, negative problem orientation, and depression. Comprehensive results, implications, and future research directions are discussed. (Contains 6 tables.) (As Provided).
Anmerkungen	American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org/publications
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10