Reliability, Validity, and Factor Structure of the Geriatric Depression Scale in Turkish Elderly: Are There Different Factor Structures for Different Cultures?

2000 ◽  
Vol 12 (2) ◽  
pp. 163-172 ◽  
Author(s):  
Turan Ertan ◽  
Engin Eker
Keyword(s):  
Factor Structure ◽  
Internal Consistency ◽  
Discriminant Validity ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Principal Component ◽  
Community Dwelling ◽  
Geriatric Depression ◽  
Reasonable Time ◽  
Positive Form

The purpose of this study was to examine the Geriatric Depression Scale (GDS) translated into Turkish for its reliability, discriminant validity, and factor structure in a sample of 276 community-dwelling elderly and 30 patients with major depression. One item (Item 5) was discovered to have conceptual difficulty for Turkish elderly and was transformed to negative form. Item 2 was transformed to positive form to keep the number of positive and negative items equal to that in the original GDS. A reasonable time stability with 1-week interval (r:.74) and a high level of internal consistency (α = .91) were observed. Student's t test resulted in a significant discriminant validity for the scale total score. Factor study with principal component analysis and varimax rotation gave rise to a structure with seven factors. Results of the same analysis with two factors were found to be easier to interpret. The first factor was composed of 19 items reflecting “depressive affect and thought content.” The other 11 items representing “decrease in motivation and cognitive functions” loaded in the second factor. In conclusion, the Turkish GDS was found to have reasonable time reliability, high internal consistency, and discriminant validity for Turkish elderly. Its two-factor structure can be used as an informative instrument for epidemiological studies, reflecting two main dimensions of depression in the elderly.

The Factor Structure of a Chinese Version of the Geriatric Depression Scale

2005 ◽  
Vol 35 (2) ◽  
pp. 137-148 ◽  
Author(s):  
Daniel W. L. Lai ◽  
Tak S. Fung ◽  
Clara T. Y. Yuen
Keyword(s):  
Factor Analysis ◽  
Factor Structure ◽  
Negative Mood ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Principal Component ◽  
Community Dwelling ◽  
Chinese Version ◽  
Geriatric Depression ◽  
Older Chinese

Objective: This study aimed to examine the factor structure of a Chinese version of the 15-item Geriatric Depression Scale (GDS) with a sample of community dwelling elderly Chinese in Canada. Method: The data for this study were obtained from a larger study examining the health and culture of 2,272 older Chinese aged 55 years and above in seven major Canadian cities. Both exploratory factor analysis using the Principal Component Analysis and confirmatory factor analysis were conducted to examine the factor structure of the GDS. Results: The findings in this study indicated a four-factor model: 1) negative mood; 2) positive mood; 3) inferiority and disinterested; 4) uncertainty. The constructs identified were associated with the unique characteristics of older Chinese who are mainly immigrants from other countries. Conclusions: The findings in this study presented evidence for the applicability of the GDS to older Chinese-Canadians. This instrument would be useful for practitioners to identify potential depression concerns among older adults in this ethnic community.

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

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Perla Massai ◽  
Francesca Colalelli ◽  
Julita Sansoni ◽  
Donatella Valente ◽  
Marco Tofani ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Internal Consistency ◽  
Discriminant Validity ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Reliability And Validity ◽  
Geriatric Depression ◽  
Retest Reliability ◽  
Test Retest Reliability

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 < ρ <−0.217). An area under the curve of 0.892 (95% CI 0.809–0.975) indicated a moderate capability to discriminate depressed patients to nondepressed patient, with a cutoff value between 15 and 16 points that predicts depression (sensitivity = 87%; specificity = 82%). Conclusion. The GDS is a reliable and valid tool in a sample of Italian PD subjects; this scale can be used in clinical and research contexts.

scholarly journals Internal Consistency of Yesavage Geriatric Depression Scale (GDS 15-Item Version) in Ecuadorian Older Adults

2020 ◽  
Vol 57 ◽  
pp. 004695802097118
Author(s):  
María Erazo ◽  
Martha Fors ◽  
Sofía Mullo ◽  
Paloma González ◽  
Carmen Viada
Keyword(s):  
Factor Structure ◽  
Internal Consistency ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
The Elderly ◽  
Cross Sectional Study ◽  
Short Version ◽  
Geriatric Depression ◽  
Cross Sectional ◽  
Confirmatory Factor

The present study aimed to assess the validity of a Spanish version of the Geriatric Depression-15 Scale (GDS-15) in Ecuadorian adults. Cross-sectional study to validate GDS-15 in its short version (GDS-15). Internal consistency and factor structure were assessed through Kuder Richardson 20 and Confirmatory Factor Analysis. A total of 211 subjects 65 years of age and older participated in the validation process. Internal consistency was adequate, the Kuder Richardson 20 coefficient for the total scale was 0.73. Three factor structure was found for the scale. This study highlights the importance of having a validated scale for screening depression in the elderly. This study provides an evidence for the use of GDS-15 in Ecuadorian elderly population to screen for depression.

Proposed Factor Structure of the Geriatric Depression Scale

1991 ◽  
Vol 3 (1) ◽  
pp. 23-28 ◽  
Author(s):  
Javaid I. Sheikh ◽  
Jerome A. Yesavage ◽  
John O. Brooks ◽  
Leah Friedman ◽  
Peter Gratzinger ◽  
...  
Keyword(s):  
Factor Structure ◽  
Social Withdrawal ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
The Elderly ◽  
Community Dwelling ◽  
Elderly Subjects ◽  
Underlying Structure ◽  
Geriatric Depression ◽  
Varimax Rotation

The Geriatric Depression Scale (GDS) is commonly used to measure depression in the elderly. However, there have been no reports of the underlying structure of the GDS. To this end, the GDS was administered to 326 community-dwelling elderly subjects, and the data were subjected to a factor analysis. A five-factor solution was selected and, after a varimax rotation, the factors that emerged could be described as: (1) sad mood, (2) lack of energy, (3) positive mood, (4) agitation, and (5) social withdrawal. This solution accounted for 42.9% of the variance. Knowledge of the factor structure should aid both clinicians and researchers in the interpretation of responses on the GDS.

An investigation of the psychometric properties of the Chinese (Cantonese) version of Subjective Index of Physical and Social Outcome (SIPSO)

2017 ◽  
Vol 31 (11) ◽  
pp. 1538-1547 ◽  
Author(s):  
Patrick WH Kwong ◽  
Shamay SM Ng ◽  
Gabriel YF Ng
Keyword(s):  
Internal Consistency ◽  
Community Integration ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Chronic Stroke ◽  
Community Dwelling ◽  
Stroke Survivors ◽  
Geriatric Depression ◽  
Social Outcome ◽  
Test Retest Reliability

Objective: The objectives of this study were 1) to translate and make cultural adaptations to the English version of the SIPSO questionnaire to create a Chinese (Cantonese) version, 2) evaluate the internal consistency, test-retest reliability the C-SIPSO questionnaire, and 3) compare the SIPSO-C scores of stroke survivors with different demographic characteristics to establish the discriminant validity of the questionnaire Design: Translation of questionnaire, cross sectional study. Setting: University-based clinical research laboratory. Subjects Community-dwelling chronic stroke survivors. Interventions: Not applicable. Main measures: Subjective Index of Physical and Social Outcome, Geriatric Depression Scale, 10-metre Walk test. Results: Two bilingual professional translators translated the SIPSO questionnaire independently. An expert panel comprising five registered physiotherapists verified the content validity of the final version (C-SIPSO). C-SIPSO demonstrated good internal consistency (Cronbach’s α = 0.83) and excellent test-retest reliability (ICC3,1 = 0.866) in ninety-two community dwelling chronic stroke survivors. Stroke survivors scored higher than 10 in the Geriatric Depression Scale ( U = 555.0, P < 0.001) and with the comfortable walking speed lower than 0.8ms–1 ( U = 726.5; P = 0.012) scored significantly lower on SIPSO-C. Conclusion: SIPSO-C is a reliable instrument that can be used to measure the level of community integration in community-dwelling stroke survivors in Hong Kong and southern China. Stroke survivors who were at high risk of minor depression and with limited community ambulation ability demonstrated a lower level of community integration as measured with SIPSO-C

Spanish version of the Geriatric Depression Scale: reliability and validity in persons with mild–moderate dementia

2012 ◽  
Vol 24 (8) ◽  
pp. 1284-1290 ◽  
Author(s):  
Ramona Lucas-Carrasco
Keyword(s):  
Depressive Symptoms ◽  
Factor Structure ◽  
Barthel Index ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Community Dwelling ◽  
Spanish Version ◽  
Comorbid Condition ◽  
Geriatric Depression ◽  
Cross Sectional

ABSTRACTBackground: Depressive symptoms are prevalent among persons with dementia (PWD). Our aim was to assess the psychometric properties of the Spanish version of the Geriatric Depression Scale (GDS-15 and GDS-5) in PWD.Methods: In this cross-sectional study, five healthcare centers providing care for PWD from two cities in Spain participated. Ninety-six community-dwelling PWD aged 55 years and older, living with a known caregiver, completed a battery of scales including the GDS-15 and GDS-5, the Cornell Scale Depression in Dementia (CSDD), a list of self-reported chronic health conditions (yes/no), severity of dementia (Mini-Mental State Examination), functional status (Barthel Index), generic quality of life (WHOQOL-BREF), and sociodemographic information.Results: Cronbach's α coefficients were 0.81 and 0.72 for GDS-15 and GDS-5, respectively, providing evidence for acceptable internal consistency. Significant associations between the GDS-15/GDS-5, the Barthel Index, CSDD, and the WHOQOL-BREF were found. No significant differences were found on GDS-15/GDS-5 scores among dementia diagnostic groups (Alzheimer's disease, vascular dementia, mixed dementia, other dementia) or between mild (MMSE 21–26) and moderate (MMSE 10–20) dementia. Participants self-reporting depression on the comorbid condition list (yes) scored significantly higher on the GDS-15 and GDS-5 compared to those who reported not having depression. Exploratory factor analyses suggested a two-factor structure on GDS-15 which accounted for 41.6% of the variability, while the one-factor structure on the GDS-5 accounted for 48.1% of the variability.Conclusions: In general, this study provides evidence that GDS-15 and GDS-5 are suitable measures for screening depressive symptoms in community-dwelling PWD.

scholarly journals Applicability of a cognitive questionnaire in the elderly and proxy

2008 ◽  
Vol 2 (3) ◽  
pp. 228-232 ◽  
Author(s):  
Renata Areza Fegyveres ◽  
Ana Paula Formigoni ◽  
Cláudia Sellitto Porto ◽  
Maria Teresa Carthery Goulart ◽  
Mirna Lie Hosogi Senaha ◽  
...  
Keyword(s):  
Geriatric Depression Scale ◽  
Depression Scale ◽  
The Elderly ◽  
Community Dwelling ◽  
Geriatric Depression ◽  
Community Group ◽  
Proxy Report ◽  
Proxy Responses ◽  
The Mean ◽  
State Examination

Abstract The Informant Questionnaire on Cognitive Decline in the Elderly with the Proxy (IQCODE) was developed as a screening tool for cognition alterations. Objectives: 1) To verify the applicability of IQCODE in the elderly with limited schooling, 2) To verify the reliability of the responses supplied by the aged and their proxies. Methods: Individuals of a Community Group were evaluated using the Mini-Mental State Examination (MMSE), IQCODE and Geriatric Depression Scale (GDS). The IQCODE was applied to informants and proxies. Results: We analyzed 44 individuals, aged between 58-82 years (M=66.8, SD=5.97) with mean elderly-schooling level of 3.75, SD=2.82 and 44 proxies aged 44.5 (SD=13.3), with mean schooling level of 8.25 (SD=4.3). The mean GDS was 8.22, SD=4.90 and 13 participants presented a score suggestive of depressive symptoms. The mean elderly IQCODE score was 3.26, SD=0.69 and 3.21, SD=0.65, for proxy responses. There was no statistical difference between these means. On the MMSE, the mean score was 24.20, SD=4.14 and 18 participants presented scores below the cut-off. The IQCODE answers by the elderly in this latter group were more congruent with MMSE than the answers of proxies. Conclusions: The applicability of the IQCODE in a population with little schooling was verified in that the proxy-report was similar to the elderly report. We can affirm that the elderly answers were more accurate than the proxies, as they were closer to MMSE score. The inclusion of a greater number of participants from community-dwelling settings is necessary to confirm the results obtained in this study.

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