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Journal of Psychopathology and Behavioral Assessment

Gepubliceerd in:

01-06-2009

Amount of General Factor Saturation in the Beck Anxiety Inventory Responses of Outpatients with Anxiety Disorders

Auteur: Robert A. Steer

Gepubliceerd in: Journal of Psychopathology and Behavioral Assessment | Uitgave 2/2009

Abstract

To ascertain the amount of general factor saturation underlying the Beck Anxiety Inventory (BAI; Beck and Steer 1993) responses of anxious patients, the BAI was administered to 525 outpatients with DSM-IV-TR anxiety disorders. McDonald’s omega_hierarchical(ω _h) (Zinbarg et al. 2005) was calculated to estimate the amount of general factor saturation; ω _h is the amount of variance explained by a general (second-order) factor underlying a scale composed of multiple items divided by the total amount of variance explained by all of the scale’s items. An iterated principal-factor analysis was first performed and followed by a Schmid-Leiman transformation to determine the amount of variance explained by the second-order factor. ω _h was 0.70 [95% CI 0.66–0.72], and this value was discussed as supporting the current practice of summing the 21 symptom ratings of the BAI to estimate the overall severity of self-reported anxiety.

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volgende artikel Influences of Comorbid Disorders on Personality Assessment Inventory Profiles in Women with Posttraumatic Stress Disorder

Before combining the responses of the men and women together for analysis purposes, parallel and MAP analyses were performed with the intercorrelations among the 21 BAI item ratings for each sex to determine the number factors to extract, and two factors were supported for each sex. An iterated principal-factor analysis was also conducted, separately, for each sex. The salient (>.30) standardized-regression coefficients for the items in the resultant pattern matrices for both sexes corresponded to the Somatic and Subjective factors that had been described by Steer et al. (1993b). The congruence coefficients between the 305 men’s and the 745 women’s standardized-regression coefficients for the Somatic and Cognitive factors were, respectively, .99 and .98.

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Titel: Amount of General Factor Saturation in the Beck Anxiety Inventory Responses of Outpatients with Anxiety Disorders
Auteur: Robert A. Steer
Publicatiedatum: 01-06-2009
Uitgeverij: Springer US
Gepubliceerd in: Journal of Psychopathology and Behavioral Assessment / Uitgave 2/2009
Print ISSN: 0882-2689
Elektronisch ISSN: 1573-3505
DOI: https://doi.org/10.1007/s10862-008-9098-9

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