Reliability and Validity of the Geriatric Depression Scale in Italian Subjects with Parkinson’s Disease

Autor: Perla Massai, Francesca Colalelli, Julita Sansoni, Donatella Valente, Marco Tofani, Giovanni Fabbrini, Andrea Fabbrini, Michela Scuccimarri, Giovanni Galeoto
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Parkinson's Disease, Vol 2018 (2018)
Druh dokumentu: article
ISSN: 2090-8083
2042-0080
DOI: 10.1155/2018/7347859
Popis: Introduction. The Geriatric Depression Scale (GDS) is commonly used to assess depressive symptoms, but its psychometric properties have never been examined in Italian people with Parkinson’s disease (PD). The aim of this study was to study the reliability and validity of the Italian version of the GDS in a sample of PD patients. Methods. The GDS was administered to 74 patients with PD in order to study its internal consistency, test-retest reliability, construct, and discriminant validity. Results. The internal consistency of GDS was excellent (α = 0.903), as well as the test-retest reliability (ICC = 0.941 [95% CI: 0.886–0.970]). GDS showed a strong correlation with instruments related to the depression (ρ = 0.880) in PD (ρ = 0.712) and a weak correlation with generic measurement instruments (−0.320
Databáze: Directory of Open Access Journals
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