Introduction: The aim of the Global Dementia Scale factor structure Roland (Rudas) was conducted in patients with dementia. Methods: This descriptive correlation study was conducted. Population of all nursing home patients with dementia Tehran Bazaar was formed in 1390., In this study, 78 patients from the Kahrizak nursing home patients with dementia sampling method Selected Data on the Global Assessment of Dementia Roland (Rudas) was completed by the investigator to interview the patient. Research data analysis using descriptive statistics, sampling adequacy and Bartlett's test of sphericity Spearman correlation test (KMO) and confirmatory factor analysis was conducted. Results: The findings indicate sampling adequacy and Bartlett's test of sphericity good value (KMO) that the 76/0 is 149.292. Well as special values of 2.952 and 59.044% of the variance, respectively, were reported. Conclusion: The results showed that a single factor is the scale of the construction of the scale of this issue shows a high correlation between items. Diagram Askryt is also confirmed.

Keywords: Factor analysis, global measure Roland dementia, patients with dementia.

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