Title New approaches on the study of the psychometric properties of the STAI
Authors ORTUÑO SIERRA, JAVIER, Garcia-Velasco, Lorena, Inchausti, Felix, Debbane, Martin, Fonseca-Pedrero, Eduardo, ORTUÑO SIERRA, JAVIER
External publication No
Means Actas Esp. Psiquiatr.
Scope Article
Nature Científica
JCR Quartile 3
SJR Quartile 3
JCR Impact 1.33900
SJR Impact 0.36700
Area International
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-84974728188&partnerID=40&md5=b48307a4d2bb133f42420ad7c65341c2
Publication date 01/05/2016
ISI 000377782000001
Scopus Id 2-s2.0-84974728188
Abstract Introduction. The main purpose of this study was to analyze the psychometric properties of the State-Trait Anxiety Inventory (STAI1). Previous studies have indicated different factor solutions. Nevertheless, there is still a lack of consensus about the best dimensional model of STAI scores. Method. The sample consisted of 417 participants, composed of 387 (29.71% male) healthy participants (comparison group: M=35.5 years; SD=8.40), and 30 (36.66% male) patient (clinical group M=35.8 years; SD=12.94). Results. The internal consistency evaluated through Ordinal Alpha was good, 0.98 and 0.94 in the non-clinical and the clinical samples, respectively. Test-retest reliability (two weeks) for Total Score was 0.81 for the non-clinical subsample, and 0.93 for the clinical subsample. Confirmatory factor analyses supported both a four factor model and bifactor model. Also, STAI scores showed statistically significant correlations with Burns Anxiety Inventory (Burns-A) scores. Furthermore, results showed statistically significant differences in the mean scores of the STAI between the clinical and the non-clinical subsamples. Conclusions. The psychometric properties of the STAI were adequate. The present study contributes to better understand the STAI structure through the comparison of new approaches in the study of the STAI internal structure. The results found may contribute in the efforts to improve the evaluation and identification of anxiety symptoms and disorders.
Keywords Anxiety; STAI; Validation; Psychometric properties; Self-report; Validity
Universidad Loyola members