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Psicothema
On-line version ISSN 1886-144XPrint version ISSN 0214-9915
Abstract
ALTUNGY, Pedro et al. Psychometric properties of the Anxiety Sensitivity Index-3 (ASI-3) in Spanish population. Psicothema [online]. 2023, vol.35, n.3, pp.300-309. Epub Nov 13, 2023. ISSN 1886-144X. https://dx.doi.org/10.7334/psicothema2022.237.
Background:
The Anxiety Sensitivity Index-3 (ASI-3) is the reference instrument for measuring anxiety sensitivity. The psychometric properties of the Spanish version of the ASI-3 have been examined in university students but not in adults from the general population. Whether the ASI-3 subscales provide relevant information has not yet been examined either.
Method:
The ASI-3's factor structure, internal consistency, temporal stability, and relationship with neuroticism were examined in a Spanish community sample of 919 adults.
Results:
In two subsamples of participants, the ASI-3 presented a structure of three correlated factors (physical, cognitive, and social concerns) that loaded on a higher-order factor, but the three factors did not explain much item variance. The total scale and subscales of the ASI-3 showed excellent or good indices of internal consistency (alphas and omegas =.81 -.91), and adequate indices of test-retest reliability at two months (r =.57 -.73) and the relationship with neuroticism and its facets (r =.19 -.52).
Conclusions:
The ASI-3 provides reliable, valid measures of anxiety sensitivity in Spanish adults, but its subscales are not very useful beyond the information provided by the total scale.
Keywords : Anxiety sensitivity; ASI-3; Factor structure; Reliability; Validity; Neuroticism.