Cross-cultural adaptation and psychometric validation of a Spanish version of the Quality of Life in Late-Stage Dementia Scale.

Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation
J Garre-OlmoJ Vilalta-Franch

Abstract

The aim of the study was to develop a cross-cultural adaptation and to evaluate the validity and reliability of a Spanish version of the Quality of Life in Late-Stage Dementia (QUALID) scale. Observational and cross-sectional validation study. The QUALID was translated according to standardised procedures. Internal consistency was assessed using Cronbach's alpha. The QUALID structure was assessed using a Principal Component Analysis (PCA). Inter-respondent (one rater asking two respondents) and inter-rater (two raters asking one respondent) reliability was assessed using the Intraclass Correlation Coefficient (ICC). The criterion validity (concurrent) was assessed by Spearman's correlation between the QUALID score and the QoL-Visual Analogue Scale (QoL-VAS) score. The construct validity (convergent) was assessed by Spearman's correlations between QUALID score and scores on the Pain-Visual Analogue Scale (Pain-VAS), on the Mini-Mental State Examination (MMSE) and on the Neuropsychiatric Inventory-Nursing Home (NPI-NH). A total of 160 elderly residents and 152 respondents at 8 long-term care centres in the province of Girona (Spain) participated in the study. Results showed satisfactory levels of internal consistency (Cronbach's ...Continue Reading

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Citations

Jan 26, 2013·International Psychogeriatrics·Jaime PeralesCarol Brayne
Jul 16, 2011·Dementia and Geriatric Cognitive Disorders·Maria L BarcaGeir Selbæk
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