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No sign-up.","2026-10-05","Aim trainer",{"instruction":162,"note":165,"picture":166,"resultLabel":169},{"touch":163,"mouse":164},"Tap each round target as fast as you can.","Click each round target as fast as you can.","30 targets. It takes about a minute.",{"kind":167,"name":168},"drawing","aim-target","Your aim",{"heading":171,"blocks":172},"How we measured this",[173,179],{"type":174,"text":175},"paragraph",[176],{"t":177,"v":178},"text","The first target only gives your hand a place to start, so its time is not scored. Every later target is timed from the moment you hit the one before it to the moment you hit it. The time per target in the result is the middle of those times.",{"type":174,"text":180},[181],{"t":177,"v":182},"For each movement we work out how hard it was, from the distance between the two targets and the width of the one you aimed at: the farther and the smaller, the harder. Divide that difficulty, in bits, by the time in seconds and you get the throughput of that movement. Your score is the mean of all of them. A press beside a target is counted as a miss and the target stays.",1,{"mouse":14,"touch":14,"keyboard":21},{"start":186,"hidden":187,"arena":188,"result":193,"flags":239},"Hit {targets|int} targets. The clock starts at the first one.","The page went into the background, so the run stopped.",{"label":189,"count":190,"hintFirst":191,"hint":192},"Aiming area. One round target is on it at a time. Hit it with your mouse or your finger.","Target {n|int} of {total|int}","Hit the first target. The clock starts then.","Hit each target as fast as you can.",{"unit":194,"valueSpoken":195,"slower":196,"faster":197,"studies":198,"studiesSpoken":199,"best":200,"bestSpoken":201,"say":202,"details":210},"bits per second","{n|dec1} bits per second","Slower","Faster","Studies, mouse: {low|dec1} to {high|dec1}","Published studies of mouse pointing report {low|dec1} to {high|dec1} bits per second.","Your best {n|dec1}","Your best earlier run is {n|dec1} bits per second.",{"markers":203,"notCompared":208,"history":209},{"range":204,"above":205,"about":206,"below":207},"Published studies of mouse pointing report {low|dec1} to {high|dec1} bits per second; you reached {you|dec1}. They used other tasks, so this is for orientation only.","That is above {value|dec1} bits per second, a figure published for mouse pointing on other tasks. Use it for orientation only.","That is about {value|dec1} bits per second, a figure published for mouse pointing on other tasks. Use it for orientation only.","That is below {value|dec1} bits per second, a figure published for mouse pointing on other tasks. Use it for orientation only.","We did not compare this one. Open How we measured this to see why.","We only show your own results for this one.",{"summary":211,"time":212,"timeValue":213,"accuracy":214,"accuracyValue":215,"misses":216,"missesValue":217,"moves":218,"movesValue":217,"bySize":219,"size":220,"sizeValue":221,"compare":222,"notComparedWhy":223,"rangeWhy":224,"historyWhy":225,"yourBest":226,"source":227,"sourceValue":228,"orientation":229,"earlier":230,"device":231},"The middle time to hit a target was {ms|ms}, and {accuracy|pct} of your presses landed on a target.","Time to hit a target (the middle one)","{ms|ms}","Presses on a target","{share|pct}","Presses beside a target","{count|int}","Movements timed","By size of target","Target {px|int} px wide","{ms|ms} over {count|int} movements","What this is set beside","This run is kept but not compared: too few targets were timed, too many presses missed, or the times were too even to tell.","For a mouse, published studies of pointing report {low|dec1} to {high|dec1} bits per second. Your result is shown beside that range, for orientation only.","No published range fits this kind of input, so your result is only set beside your own earlier runs.","Your best result with this input in this browser: {n|dec1} bits per second, over {count|int} runs.","Source","{authors}, read on {date}","Those studies used other pointing tasks and adjusted their results for accuracy. Yours is a different task, so the range tells you roughly what to expect and no more.","Your earlier runs, oldest first: {list}",{"heading":232,"used":233,"input":234},"Your device","You used",{"touch":235,"mouse":236,"keyboard":237,"pen":238},"A touch screen","A mouse","A keyboard","A pen",{"false-start":240,"anticipation":241,"lapse":242,"hidden":243,"frame-gap":244,"dropped-frames":245,"aborted":246,"unfinished":247,"too-few-trials":248,"latency-unknown":249,"untrusted":250,"key-repeat":251,"uniform":252,"implausible-rate":253,"assisted":254,"low-accuracy":255,"paste-refused":256,"skimmed":257,"low-comprehension":258,"straightlining":259,"too-fast":260,"too-many-skipped":261,"prorated":262,"not-enough-answers":263,"ceiling":264,"too-many-voids":265,"frame-limited":266,"frame-unknown":267,"lower-bound":268},"Pressed before the change: those tries were done again.","Some presses were too quick to be reactions: those tries were done again.","Some tries were too slow to count.","The page went into the background: that part was not counted.","The screen stalled for a moment: that try was done again.","The screen was slow to change on some tries: those times may be a little short.","Stopped before the end.","Not finished.","Too few tries counted to give a result.","The browser did not say how long its sound takes to play, so the times include an unknown delay.","Some presses did not come from your own touch, click or key and were ignored (a script or another program).","A held key repeated by itself: the repeats were ignored.","The presses came at evenly spaced intervals, like a machine's: the result is kept but not compared.","Faster than one finger can tap: runs with several fingers are kept but not compared.","Your keyboard corrected or predicted some words for you, so this run is not compared.","Too few answers were right to compare this run.","Pasted text was left out: only what you typed counts.","The text was on screen too briefly to have been read, so the reading speed is not compared.","Too few questions about the text were answered right, so the reading speed is not compared.","Many answers in a row were the same, also where statements point in opposite directions: the result is shown but not compared.","You answered very quickly, in under a second per statement on average, so this result is not compared with others.","Too many statements were left out to give a result.","Some statements were left out: their scales were completed from your other answers.","A scale has too few answers for a result.","You reached the end of the test, so your true result may be higher.","Too many tries were not counted (the page was in the background or the screen stalled).","The browser reports the mouse once per screen frame, so this is the screen's rate, not the mouse's.","The screen's frame rate is unknown, so it cannot be told whether this is the mouse's rate.","Many reports arrived together: the mouse reports at least this often.",1791315149137]