The Mini-mental State Examination revisited: ceiling and floor effects after score adjustment for educational level in an aging Mexican population

Abstract

Even when MMSE scores are corrected for educational level they still have ceiling and floor effects. These effects should be considered when interpreting data from longitudinal studies of cognitive decline. When an education-adjusted MMSE test is used to screen for cognitive impairment, additional testing may be required to rule out the possibility of mild cognitive impairment.