Blog
Short guides that go with our games and tests: what your score means, how each test works, and how to read screening results.
Reaction speed
What Is a Good Reaction Time? Benchmarks From 8,791 Players
Real reaction time benchmarks from 8,791 players of our online test: the median is 369 ms, and under 300 ms beats about 84% of players. See where your score lands.October 25, 2026What Is a Good CPS Test Score? Click Speed Benchmarks and Tips (2026)
Real 5-second CPS benchmarks from 4,554 players: the median is 7.0 clicks per second, 9 CPS beats about three out of four players, and 11 CPS reaches the top 10%.October 23, 202610 Second Challenge: How Close Do People Really Get? Data From 19,788 Players
We looked at 19,788 players' best attempts at stopping the timer at exactly 10 seconds. The typical best miss is just 32 ms, but hide the timer and it grows to about a quarter of a second.October 25, 2026How to Improve Reaction Time for Gaming: What Actually Helps
What really improves reaction time for gaming? Learn how display and mouse latency, sleep, caffeine, exercise, and practice affect your speed, and how to measure progress.October 23, 2026
Memory
Digit Span Test Explained: Forward vs Backward and What Your Span Means
What a digit span test measures, why backward recall is harder than forward, why 7 digits is a famous number, and typical spans from our first 214 players.October 25, 2026Dual N-Back: How to Play and What the Research Says
How dual n-back works, a step-by-step 1-back walkthrough, when to move up a level, and an honest look at what studies say about working memory and intelligence.October 25, 2026How to Improve Short Term Memory: 7 Science-Backed Ways to Fix Memory Problems
Discover how to repair and regenerate your hippocampus to dramatically improve short term memory through proven lifestyle and nutritional interventions that restore brain health.June 25, 2025
Attention
Trail Making Test Explained: Parts A and B, What They Measure, and Typical Times
What the Trail Making Test measures, why Part B is harder than Part A, how to read the B minus A difference, and typical online times from our first 201 players.October 25, 2026What Is a Good Schulte Table Time? Benchmarks From 10,560 Players
Real 5×5 Schulte Table benchmarks from 10,560 players: the median time is 26.4 seconds, under 20 seconds is the top 21%, and under 15 seconds is the top 5%.October 25, 2026What Is the Stroop Effect? The Stroop Experiment Explained
Why is it hard to say 'red' when the word BLUE is printed in red ink? How the 1935 Stroop experiment works, why the effect happens, what the test measures, and what it cannot tell you.October 25, 2026Schulte Table Benefits: Evidence, Limits & How to Practice
Learn what Schulte Tables measure, which visual-search benefits are supported, where reading and ADHD claims exceed the evidence, and how to practice safely.September 18, 2026
ADHD screening
How to Score the Vanderbilt ADHD Rating Scale: A Simple Guide for Parents and Teachers
A plain-English guide to scoring the Vanderbilt ADHD Rating Scale, including symptom counts, performance questions, parent vs teacher forms, and what the results may mean.March 30, 2026Adult ADHD ASRS Guide: Scoring, Interpretation, and Screening
Learn how ASRS-v1.1 scoring works, what adult ADHD assessment results may mean, and how this WHO screening tool is used for adult ADHD evaluation.October 23, 2026The Vanderbilt ADHD Rating Scale: A Comprehensive Guide to Children's ADHD Assessment and Diagnosis
Discover everything you need to know about the Vanderbilt ADHD Diagnostic Rating Scale for children's ADHD assessment, from its development history to clinical applications in pediatric diagnosis.October 23, 2026