What you can do here
- Read lessons about reasoning, cognition, and media literacy, with examples and explanations of the ideas involved.
- Answer practice questions and compare your answer with the explanation, including why another answer may seem plausible.
- Play tasks involving recall, attention, patterns, or timing. Each game has its own rules and scoring.
- Use book guides and research notes to explore a topic, follow a source, and examine the limits of a claim.
Public lessons and articles are available to read before creating an account. Personal activity features help you keep a record of your sessions and return to previous work.
What the results mean
Scores describe performance on the activity you completed. Compare rounds with the same rules and difficulty, and consider mistakes as well as speed. Points, time spent, and streaks describe participation.
A higher game score does not establish improved intelligence, everyday judgment, or mental health. Nuxflo is not a clinical or diagnostic service, and its results are not a validated assessment of general cognitive ability. A paper discussed on this site is not evidence that Nuxflo itself has been tested.
Publishing and corrections
Nuxflo publishes the educational material on this site. “Nuxflo Editorial” and “Nuxflo Research Notes” are publisher bylines; they do not identify an individual researcher or claim an independent research team. Book authors and study authors are credited separately from our guides and commentary.
Some educational copy, including the book guides, uses AI-assisted drafting. The guides include original hypothetical examples and links to book references. Research discussions identify their sources and distinguish reported findings from suggested practice. These pages can still contain mistakes.
To report an error, send the page address, the statement you question, and a supporting source or counterexample through Contact. For details about information collected by the site, read the privacy policy.
Some book links are affiliate links. Nuxflo may earn a commission from qualifying purchases. You can read the guides and follow their references without buying a book.