Free Online Cognitive and Memory Tests: What They Can and Can’t Tell You

Search “free memory test” and you will find everything from university-developed screening forms to quick games promising to reveal your “brain age.” Some are useful; some are entertainment dressed up as assessment. The difference comes down to three questions: who developed the test and studied it, what your score is compared with, and who interprets the result. This guide walks through the main types of free tests honestly, including what to do if you are looking for the old free Cambridge Brain Sciences tests.

The main kinds of free cognitive tests

• Clinician-designed paper screens that are offered free to the public, such as SAGE from Ohio State. These have published validation studies but are meant to be scored by a doctor.
• Brain-game websites and apps that let you play memory, speed or attention puzzles and often show a score or ranking. These are built mainly for practice and engagement.
• Quiz-style “memory tests” and “dementia tests” on health and lifestyle sites, often a few questions long, usually without published norms.
• Research platforms run by universities, where you contribute data to studies and sometimes see your own results. Their purpose is research, not individual clinical feedback.

A rough rule: the more a free test tells you what your result “means” for your health, the more carefully you should ask where that interpretation comes from.

SAGE: a free screen with real research behind it

The Self-Administered Gerocognitive Examination (SAGE) was developed by neurologist Douglas Scharre and his team at The Ohio State University Wexner Medical Center. Ohio State offers it as a free download. According to Ohio State, there are four interchangeable forms and you only need to take one; it takes about 10 to 15 minutes on average with no time limit; and it “should be scored by your physician.” Ohio State also states clearly that SAGE “does not diagnose any specific condition,” and asks you to take the completed test to your primary care doctor.

The research is solid for a screen. In the original 2010 validation study, adults over 59 took SAGE, and a subset of 63 had full clinical and neuropsychological evaluations; SAGE showed 95% specificity and 79% sensitivity for distinguishing cognitive impairment from normal cognition. A 2014 community study screened 1,047 people over 50 at 45 events and found it workable in group settings. A tablet version studied in 2017 tracked the paper version closely, though digital scores averaged about one point lower.

Two caveats. SAGE was developed and studied in middle-aged and older adults, so it is not a tool for teens or young adults worried about focus. And Ohio State’s terms do not permit modifying or redistributing the test, so use the official download rather than a copy on another site.

Why norms matter more than the score

A raw score has no meaning on its own. Remembering seven digits is excellent at one age and typical at another. A useful test compares you with a norm group: a large, described sample of people, ideally split by age, who took the same test the same way.

Ask three questions of any free test: How many people are in the comparison group? How old were they, and does it compare you with your own age? How were they recruited? Even professional tools have honest limits here. Creyos, for example, compares people with a database of more than 85,000 people split into age bands, and openly notes that the sample was recruited online and not screened for health conditions. Many free quiz sites publish nothing at all, which means a “top 10%” badge may simply mean you scored higher than other people who happened to play.

Why the setting and supervision matter

Testing at home is convenient, but it adds noise. A phone notification, a child asking a question, a small screen, a slow connection or just not trying very hard can all lower a score. The same test can behave differently in a quiet clinic room and at the kitchen table.

Research bears this out. In a study of adults aged 55 to 75 who took an online battery at home, unsupervised, three times (Kochan and colleagues, 2022), consistency for individual tasks ranged widely, from poor to good, while combined composite scores were much more stable. In plain terms, one task on one day at home can be misleading; a broader picture across several tasks is sturdier. Clinical platforms add checks for this, such as Creyos’s validity indicator, which flags results that look unusual enough to question. Most free sites have nothing similar.

Brain games are practice, not measurement

Brain-training games are designed to make you better at the games, and they do. Whether that spreads to other skills is the hard part. In a study of 11,430 people who trained online for six weeks (Owen and colleagues, 2010), participants improved on the trained tasks but showed no transfer to untrained ones. A major 2016 review (Simons and colleagues) reached a similar conclusion across the literature, finding little evidence that training improves everyday cognitive performance.

This matters for testing too. If you have played a memory game daily for months, your score on a similar game says more about practice than about your memory. For more on this, see does brain training work?.

Looking for the old free Cambridge Brain Sciences tests?

Many people remember taking free Cambridge Brain Sciences tests online. The company was renamed Creyos in 2022, the old consumer site now redirects to creyos.com, and there is currently no self-test you can take on your own: access comes through a clinician, who sends a link or sets up the tasks in the office. The full story is in Cambridge Brain Sciences is now Creyos, and the Creyos patient guide explains how the clinical version works.

What a free test result can and cannot tell you

If a free test leaves you worried, the answer is not to retake it until you like the number. It is to talk with someone who can look at the whole picture. Our plain-English guide to cognitive assessments explains what a fuller evaluation involves.

When to book a clinical assessment instead

Where to start depends on the concern:

• Memory changes in an older adult, especially if others have noticed them: start with primary care, which can check medical causes and refer to neurology or a memory clinic. Our comparison of Creyos and memory screens like the MoCA explains the tools used there.
• Focus, memory or slowed thinking alongside low mood, anxiety, poor sleep or possible ADHD: a psychiatric clinician can evaluate those together. Willow & Stone offers a Creyos assessment as part of an evaluation; whether you’d take it remotely or in our Arlington office, and the fee, are confirmed when you book. See online cognitive assessment or request a consultation.
• School, legal or disability questions: these usually require testing by a psychologist or neuropsychologist.

Common Questions

Sources & Further Reading

• Ohio State Wexner Medical Center — SAGE: Self-Administered Gerocognitive Exam
• Scharre DW et al. Self-administered Gerocognitive Examination (SAGE): a brief cognitive assessment instrument for MCI and early dementia. Alzheimer Dis Assoc Disord. 2010
• Scharre DW et al. Community cognitive screening using SAGE. J Neuropsychiatry Clin Neurosci. 2014
• Scharre DW et al. Digitally translated SAGE (eSAGE). Alzheimers Res Ther. 2017
• Kochan NA et al. Reliability, validity, and user-experience of remote unsupervised computerized neuropsychological assessments in community-living 55- to 75-year-olds. J Alzheimers Dis. 2022
• Owen AM et al. Putting brain training to the test. Nature. 2010
• Simons DJ et al. Do “brain-training” programs work? Psychol Sci Public Interest. 2016
• Creyos — Cambridge Brain Sciences is now Creyos (Nov 2, 2022)

This article is general education, not a diagnosis or advice for your situation. Creyos results support, and never replace, a clinical evaluation; only a clinician who has evaluated you can diagnose a condition or recommend treatment. Do not start, stop, or change a medication without talking to the clinician who prescribes it.