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The Anxiety Sensitivity Index—Revised

Confirmatory Factor Analyses, Structural Invariance in Caucasian and African American Samples, and Score Reliability and Validity

University of Southern Mississippi, Randolph.Arnau{at}usm.edu

Joshua J. Broman-Fulks

Appalachian State University

Bradley A. Green

University of Southern Mississippi

Mitchell E. Berman

University of Southern Mississippi

The most commonly used measure of anxiety sensitivity is the 36-item Anxiety Sensitivity Index—Revised (ASI-R). Exploratory factor analyses have produced several different factors structures for the ASI-R, but an acceptable fit using confirmatory factor analytic approaches has only been found for a 21-item version of the instrument. We evaluated the fit of all published factor models for the 36- and 21-item ASI-R, modified the hierarchical model using an approach that does not eliminate items, evaluated the invariance of the modified model across Caucasian and African-American subsamples, and compared the reliability and validity of the 36-item and 21-item versions. The 21-item version of the ASI-R fit a four factor model, as did the 36-item version after several meaningful model modifications. The modified 36-item model was replicable in independent cases and its structural properties were generally invariant across race. Scores from the 36-item version exhibited superior reliability and criterion-related validity.

Key Words: anxiety sensitivity • Anxiety Sensitivity Index—Revised • confirmatory factor analysis • factorial invariance

This version was published on June 1, 2009

Assessment, Vol. 16, No. 2, 165-180 (2009)
DOI: 10.1177/1073191108328809


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