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Psicothema

versão On-line ISSN 1886-144Xversão impressa ISSN 0214-9915

Resumo

GOMEZ-GOMEZ, Irene et al. Psychometric properties of the online version of the General Anxiety Disorder-7 (GAD-7): A longitudinal study in pregnant and postpartum Spanish women. Psicothema [online]. 2024, vol.36, n.3, pp.227-235.  Epub 29-Nov-2024. ISSN 1886-144X.  https://dx.doi.org/10.7334/psicothema2023.293.

Background:

The use of online questionnaires to assess common mental disorders such as perinatal anxiety has spread due to the proliferation of Internet-based psychological interventions and research. This study analyses the validity and reliability of the online version of the Generalized Anxiety Disorder-7 (GAD-7) in a sample of pregnant and postpartum Spanish women.

Method:

A total of 3082 pregnant (n = 1260) and postpartum (n = 1822) women were recruited via the Internet and underwent three follow-up evaluations during a six-month period.

Results:

A one-factor solution was assigned by Exploratory Factor Analysis and confirmed by Confirmatory Factor Analysis for both pregnant (CFI = 0.998; RMSEA = 0.035) and postpartum (CFI = 0.998; RMSEA = 0.038) women. The one-factor model showed strict invariance across groups. Validity was confirmed by assessing correlations between GAD-7, the Edinburgh Postnatal Depression Scale, and the 10-item Posttraumatic Stress Disorder checklist at three time points. The reliability coefficient was .92 for the two groups.

Conclusions:

This study shows that the Spanish online GAD-7 version has good psychometric properties and can be used to assess anxiety symptoms during the perinatal period.

Palavras-chave : Perinatal period; Online assessment; Generalized anxiety disorder; Validity study.

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