{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T16:01:46Z","timestamp":1787673706930,"version":"build-2736575974"},"reference-count":28,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2006,2,13]],"date-time":"2006-02-13T00:00:00Z","timestamp":1139788800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int J Geriat Psychiatry"],"published-print":{"date-parts":[[2006,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>The cognitive subscale of the Alzheimer's Disease Assesment Scale (ADAS\u2010Cog) is the most widely used test in clinical trials dealing with Alzheimer's disease (AD). The aim of this study was to investigate the validity and reliability of the Turkish version of ADAS\u2010Cog.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Twenty\u2010nine patients with AD, fullfilling NINCDS\u2010ADRDA criteria of probable AD, who were in stage 3\u20135 according to the Global Deterioration Scale (GDS), and 27 non\u2010demented control subjects with similar age, gender and educational status were recruited for the study. The Turkish version of ADAS\u2010Cog, Standardized Mini Mental Status Examination (MMSE) and Short Orientation\u2010Memory\u2010Concentration Test (SOMCT) were applied to both of the groups. Inter\u2010rater reliability, internal consistency, test\u2013retest reliability; face validity, differential validity and convergent validity were statistically analyzed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Both MMSE and ADAS\u2010Cog have significantly differentiated patients with AD and control subjects (<jats:italic>p<\/jats:italic> &lt; 0.001). A significant correlation was established between MMSE and ADAS\u2010Cog scores in AD group (<jats:italic>r<\/jats:italic>: \u22120.739). ADAS\u2010Cog was also highly significantly correlated with GDS (<jats:italic>r<\/jats:italic>: 0.720) and SOMCT (<jats:italic>r<\/jats:italic>: 0.738). For the group with AD, control and whole cohort coefficients of internal consistency, Cronbach's \u03b1: 0.800, 0.515, 0.873 were found respectively. Inter\u2010rater reliability for total ADAS\u2010Cog score was found as ICC: 0.99 and 0.98 and test\u2013retest reliability was found as ICC: 0.91 and 0.95 for demented and nondemented subjects, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The Turkish version of ADAS\u2010Cog has been found to be highly reliable and valid in differentiating patients with mild and moderate AD from nondemented subjects. Copyright \u00a9 2006 John Wiley &amp; Sons, Ltd.<\/jats:p><\/jats:sec>","DOI":"10.1002\/gps.1457","type":"journal-article","created":{"date-parts":[[2006,2,13]],"date-time":"2006-02-13T14:47:15Z","timestamp":1139842035000},"page":"259-265","source":"Crossref","is-referenced-by-count":33,"title":["The validity and reliability of the Turkish versii\u0307on of Alzheimer's Disease Assessment Scale\u2010Cognitive Subscale (ADAS\u2010Cog) in patients with mild and moderate Alzheimer's disease and normal 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