MoCA Score Calculator — Cognitive Screening

The MoCA allocates its 30 points to make early impairment visible rather than to confirm established dementia. Visuospatial and executive function takes 5 points through an alternating trail-making task, a three-dimensional cube copy and a clock drawing scored separately for contour, numbers and hands. Naming takes 3 points using low-frequency animals - lion, rhinoceros and camel - chosen because common items are preserved far into decline. Attention takes 6 across digit span forward and backward, a target-tapping vigilance task and serial sevens. Language takes 3 through two syntactically complex repetition sentences and letter fluency for F. Abstraction takes 2 through similarity pairs, delayed recall takes 5, and orientation takes 6. The five-word list with a five-minute delay and interference is the single most diagnostically loaded section, since delayed free recall tracks hippocampal function. One point is added when formal education is 12 years or fewer, capped at a total of 30. The original cut-off of 26 gives high sensitivity for mild cognitive impairment, reported near 90 percent, but produces many false positives in community and low-education samples; Carson, Leach and Murphy argued in 2018 for a lower operating point around 23. Cued recall is administered but not scored, and it is clinically informative: recovery with a category or multiple-choice cue points to a retrieval problem, typical of subcortical and vascular patterns, whereas failure despite cueing points to an encoding failure more characteristic of Alzheimer disease. Cross-cultural performance is uneven because trail-making assumes the Roman alphabet and fluency depends on language structure.

Ziad Nasreddine, a neurologist practising in Greenfield Park near Montreal, developed the test through the late 1990s at his memory clinic after repeatedly seeing patients with clear functional complaints who scored 28 or higher on the Mini-Mental State Examination. He assembled tasks that loaded on executive control and delayed memory rather than orientation, and refined the item set against clinic patients until it separated normal ageing from mild cognitive impairment. The validation study, with Natalie Phillips, Valerie Bedirian, Howard Chertkow and colleagues, compared MCI patients, mild Alzheimer disease patients and healthy controls and was published in the Journal of the American Geriatrics Society in April 2005. The test spread unusually fast, helped by a decision to distribute it free through mocatest.org at a time when the MMSE had come under commercial copyright. It was translated into more than 60 languages, adopted by stroke and Parkinson disease research networks, and recommended by the NINDS-Canadian Stroke Network harmonisation standards for vascular cognitive impairment in 2006. Alternate forms - versions 2 and 3 - were released to blunt practice effects in serial testing, alongside blind, basic and telephone adaptations for specific settings. In 2019 the copyright holder introduced mandatory free online certification for administrators, a response to widespread untrained use and inconsistent scoring, and later versions and normative datasets continue to be issued through the official site.