- For young adults on a clean simple-RT task, means often land around 200–250 ms.
- Input lag, browsers, and “wait for green” designs add time.
- Research finds a modest correlation between some speeded measures and cognitive scores.
- Inspection time asks how briefly a stimulus can be shown before you still judge it (for example which line was longer).
- Age, caffeine, sleep, practice, and anxiety.
- Use reaction-time and inspection-time lite as toys that report milliseconds or accuracy.
What is a typical simple RT in the lab?
For young adults on a clean simple-RT task, means often land around 200–250 ms. Older adults are slower on average. These are group figures, not a pass/fail for you.
Why is this website slower?
Input lag, browsers, and “wait for green” designs add time. Comparing your All-Lifes milliseconds to a published lab mean is apples to oranges.
Does faster RT mean higher IQ?
Research finds a modest correlation between some speeded measures and cognitive scores. Modest is not identity. We never convert reaction time into a fake IQ.
What is inspection time?
Inspection time asks how briefly a stimulus can be shown before you still judge it (for example which line was longer). It is related to, but not the same as, a speeded click. Our inspection-time lite is a practice flash game.
What changes RT besides “intelligence”?
Age, caffeine, sleep, practice, and anxiety. Hick’s law: more choices, slower choice RT. None of that is a diagnosis from this page.
How to read your score here
Use reaction-time and inspection-time lite as toys that report milliseconds or accuracy. A “good” run is relative to your own previous runs, not a clinical cutoff.
❓ People also ask
What Is a Good IQ Score?
An IQ of 100 is exactly average; 110-119 is above average, 120 and up puts you in the top 10% (a genuinely 'good' score), and 130+ is considered gifted. IQ is built on a normal distribution with a mean of 100 and a standard deviation of 15, so most people cluster near the middle.
What Is a Good IQ Score? →IQ Percentile Chart: What Percentile Is My IQ?
Your IQ percentile tells you the share of people you scored higher than: an IQ of 100 is the 50th percentile, 115 is about the 84th, 120 is roughly the top 10%, and 130 is roughly the top 2%. The table below maps every major IQ band to its classification, percentile, and share of the population.
IQ Percentile Chart: What Percentile Is My IQ? →Are Online IQ Tests Accurate?
A well-designed online IQ test gives a reliable estimate of your reasoning ability, but it is not a clinical diagnosis — only a proctored test like the WAIS or Stanford-Binet provides that. This test is built on Raven's Progressive Matrices and CHC theory, scored on the standard scale (mean 100, SD 15), with an internal reliability (Cronbach's alpha) of about 0.85-0.92.
Are Online IQ Tests Accurate? →Can You Increase Your IQ?
You can meaningfully sharpen reasoning skills, working memory, and test performance through training and education, but raising your underlying general intelligence (g) substantially and permanently is not well supported — core g is largely heritable. The honest answer is that some gains are real and some popular claims are overstated.
Can You Increase Your IQ? →Genius IQ Level: What Number Counts as Genius?
A 'genius' IQ traditionally starts at 140, while 130 and above is labeled 'very superior' on modern tests. Scores that high are extremely rare, and the famous IQ numbers you see for historical figures are almost always estimates, not measured results.
Genius IQ Level: What Number Counts as Genius? →