During a Mini-Cog test, a clinician asks the person to remember three words, draw a clock, and then recall those words. The roughly three-minute test screens for possible cognitive impairment; it does not diagnose dementia. A low score suggests that a fuller evaluation may be appropriate. A higher score makes dementia less likely but cannot rule out cognitive problems.
Medical information disclaimer: This article is for general educational purposes only and does not provide medical advice, diagnosis, or treatment. Always consult a physician or other qualified health professional about symptoms, medications, tests, or treatment decisions.
Table of Contents
- What happens during the test?
- How is the Mini-Cog scored?
- What does the result mean?
- What are the test's limitations?
- What should happen after the test?
What happens during the test?
The clinician begins by saying three unrelated words. The person listens, repeats them, and tries to remember them.
The clinician may allow up to three attempts to repeat the words correctly. Next, the person completes two tasks: If the clock remains unfinished after three minutes, the clinician moves to word recall. The person is still asked to recall the words even if they could not repeat them initially, according to the official Mini-Cog instructions.
- Draw a clock and place all the numbers on it.
- Set the clock hands to ten past eleven.
- Recall the original three words without prompts.
How is the Mini-Cog scored?
The score ranges from zero to five. The person receives one point for each word recalled without prompting, for up to three points. The clock receives two points if it is normal and zero if it is abnormal.
A normal clock contains the numbers 1 through 12 once each, arranged clockwise, with hands pointing to 11 and 2. The relative lengths of the hands do not affect scoring. This all-or-nothing clock score means a partly correct clock still receives zero points. The Mini-Cog scoring guidance combines that clock result with the unprompted word-recall score.
What does the result mean?
A total score of zero to two indicates a higher likelihood of clinically important cognitive impairment. A score of three to five indicates a lower likelihood of dementia, but it does not exclude impairment. The result is a screening signal, not a verdict.
The National Institute on Aging says a concerning cognitive screening result should lead to fuller cognitive and medical evaluation, often including information from the person and someone who knows them well. The individual tasks also provide context. Someone may remember all three words but struggle with the clock, or draw a normal clock but recall none of the words. The total score reflects both performances.
What are the test's limitations?
Clock drawing assumes basic literacy and familiarity with analog clocks. A cognitively normal person without those skills may be unable to complete the task successfully. The evidence also has limits.
A 2021 Cochrane review found only three community-setting studies, with methodological problems that may have overstated accuracy. The reviewers could not recommend for or against routine Mini-Cog screening in community settings. A score therefore needs context. Language, educational background, and familiarity with the clock format can affect how a clinician interprets what happened during the screening.
What should happen after the test?
If the score is zero to two, ask what fuller cognitive and medical evaluation will follow. It can also help to ask how the word-recall and clock results contributed to the total. Tell the clinician if the person has limited literacy or little experience with analog clocks.
That information may explain difficulty with the clock task and should be considered alongside other observations. If the score is three to five but concerns remain, do not treat the result as proof that nothing is wrong. A higher Mini-Cog score lowers the likelihood of dementia but cannot exclude cognitive impairment.
