Psychometric Properties of the Portuguese Version of the Geriatric Anxiety Inventory in a Sample of Eldery People in Residential Care

Revista Portuguesa de Investigação Comportamental e Social, 1(2), 15-30. DOI: 10.7342/ismt.rpics.2015.1.2.22

15 Pages Posted: 15 Jul 2017

See all articles by Fernanda Daniel

Fernanda Daniel

Instituto Superior Miguel Torga

Henrique Vicente

Instituto Superior Miguel Torga

Sónia Guadalupe

Instituto Superior Miguel Torga; Universidade de Coimbra - Centre for Health Studies and Research of the University of Coimbra

Alexandre Silva

Universidade de Coimbra

Helena Espirito Santo

Instituto Superior Miguel Torga; Universidade de Coimbra - Centro de Investigação do Núcleo de Estudos e Intervenção Cognitivo- Comportamental

Date Written: September 30, 2015

Abstract

Background: The progressive increase in the prevalence of anxiety disorders in advanced ages advises the extensive use of screening inventories in this population that, everywhere in the world, has become increasingly numerically significant. Goals: The aim of this study is to present the results of validation and reliability studies of the Portuguese version of Geriatric Anxiety Inventory (GAI). Methods: After, translation and back-translation of GAI, the Portuguese version was administered to 805 institutionalized elderly. The reliability of the scale was assessed by Cronbach's alpha coefficient and factorial validity using the extraction method of Principal Components Analysis. The convergent validity study was conducted with the Geriatric Depression Scale and the Negative Affects Schedule while discriminant validity was performed with the Positive Affects Schedule and the Satisfaction With Life Scale. We used confirmatory factor analysis, by means of structural equation modeling, to test the fit of the model with 20 items. We used the area under the ROC curve (AUC) to predict the group of elderly patients with generalized anxiety disorder and the group of healthy elderly. Results: The scale has good internal consistency (α = 0.94), indicators of good convergent and discriminant validity, were all significant. The model showed a good quality of fit to the data (χ2/df = 2.805; TLI = 0.959; CFI = 0.964; RMSEA = 0.047). The ROC analysis revealed a sensitivity of 100% and specificity of 84.7% in the detection of generalized anxiety disorder with a cutoff score of 13 (AUC = 0.92). Finally, women showed higher scores than men. Conclusions: The GAI has good psychometric and factorial qualities to measure anxiety symptoms in epidemiological surveys and in geriatric institutionalized settings.

Keywords: Geriatric Anxiety Inventory, old age, validation

Suggested Citation

Daniel, Fernanda and Vicente, Henrique and Guadalupe, Sónia and Silva, Alexandre and Espirito Santo, Helena, Psychometric Properties of the Portuguese Version of the Geriatric Anxiety Inventory in a Sample of Eldery People in Residential Care (September 30, 2015). Revista Portuguesa de Investigação Comportamental e Social, 1(2), 15-30. DOI: 10.7342/ismt.rpics.2015.1.2.22, Available at SSRN: https://ssrn.com/abstract=2999089

Fernanda Daniel (Contact Author)

Instituto Superior Miguel Torga ( email )

Largo da Cruz de Celas nº1
Coimbra, Coimbra 3000-132
Portugal

Henrique Vicente

Instituto Superior Miguel Torga ( email )

Largo da Cruz de Celas nº1
Coimbra, Coimbra 3000-132
Portugal

Sónia Guadalupe

Instituto Superior Miguel Torga ( email )

Largo da Cruz de Celas nº1
Coimbra, Coimbra 3000-132
Portugal

Universidade de Coimbra - Centre for Health Studies and Research of the University of Coimbra ( email )

Coimbra
Portugal

HOME PAGE: http://https://www.uc.pt/org/ceisuc/CEISUC

Alexandre Silva

Universidade de Coimbra

Avenida Dias da Silva, 165
Coimbra, 3001-454
Portugal

Helena Espirito Santo

Instituto Superior Miguel Torga ( email )

Largo da Cruz de Celas nº1
Coimbra, Coimbra 3000-132
Portugal
239404608 (Phone)

Universidade de Coimbra - Centro de Investigação do Núcleo de Estudos e Intervenção Cognitivo- Comportamental ( email )

Portugal

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