We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleItem response theory reveals variability of functional impairment within clinical dementia rating scale stages.AuthorsMiller TM; Balsis S; Lowe DA; Benge JF; Doody RSPublicationDementia and geriatric cognitive disorders, 2011, Vol 32, Issue 5, p362ISSN1421-9824Publication typearticleDOI10.1159/000335727