All tests
18 tests, plus the data pages and articles that explain what the numbers mean. Nothing here needs an account, and nothing is behind a paywall.
24 of 24 pages
Test · Reaction & Response SpeedReaction Time TestClick the moment the canvas lights up. Five trials, median score.Test · Reaction & Response SpeedAuditory Reaction Time TestHeadphones on. Press the moment you hear the tone, not before.Test · Reaction & Response SpeedChoice Reaction Time TestFour squares, four keys. Press the right one as fast as you can.Test · Reaction & Response SpeedGo/No-Go TestPress on green. Do nothing on red. The second one is the hard part.Test · Reaction & Response SpeedReaction Time Test for GamersTargets appear anywhere. The clock stops when you hit one, not when you see it.Test · Memory & RecallN-Back TestSay match when the square returns to where it was n steps ago.Test · Memory & RecallDigit Span TestDigits appear one at a time. Type them back. The list grows until you break.Test · Memory & RecallCorsi Block-Tapping TestNine blocks, one sequence, tapped back in order. No words to lean on.Test · Memory & RecallVisual Memory TestA pattern flashes. Rebuild it. The grid grows every time you get it right.Test · Memory & RecallSequence Memory TestRepeat the sequence. It gets one step longer every time you are right.Test · Attention & FocusStroop TestName the colour of the ink. Ignore what the word says. It will not let you.Test · Attention & FocusSustained Attention TestPress for every digit except 3. Simple, dull, and surprisingly hard to do.Test · Attention & FocusPsychomotor Vigilance TaskThree minutes of almost nothing. Every lapse gets counted.Test · Attention & FocusTrail Making TestJoin the dots in order. Then do it again, alternating numbers and letters.Test · Motor Skill & Input SpeedClick Speed TestClick as fast as you can. The timer starts on your first click, not before.Test · Motor Skill & Input SpeedSpacebar Speed TestTap the space bar as fast as you can. Holding it down counts for nothing.Test · Motor Skill & Input SpeedTyping Speed TestOne minute of real prose. Net words per minute, errors subtracted.Test · Motor Skill & Input SpeedAim TrainerThirty targets, one at a time, each one timed. No waiting between them.Data · Reaction & Response SpeedAverage Reaction Time by AgeThe age curve, what drives it, and why the slope is gentler than folklore suggests.Data · Memory & RecallWhat Is a Good Digit Span?Percentiles for forward and backward span, and what a high score actually means.Data · Motor Skill & Input SpeedAverage Typing SpeedWhere 40 words per minute actually sits, and what the number is worth.Article · Reaction & Response SpeedWhat Is a Good Reaction Time?The honest answer, the hardware caveat, and why the popular figure is wrong.Article · Memory & RecallHow Working Memory WorksThe loop, the sketchpad, the four-item limit, and why your two spans disagree.Article · Attention & FocusThe Stroop Effect ExplainedNinety years of a very robust finding, and the claims it will not support.