MMSE–CDR‐SB residual as an exploratory indicator of deviation from an Alzheimer's disease–typical cognitive–functional pattern
Whether the Mini‐Mental State Examination Clinical Dementia Rating Sum of Boxes (MMSE–CDR‐SB) residual, defined as observed minus expected CDR‐SB from a published MMSE–CDR‐SB reference equation, reflects clinically meaningful deviation from the expected cognitive–functional relationship is tested.