Practice Your Aim

• Average time for each target: the full run time divided by the number of targets, for milliseconds (ms). Lower one better. Missed clicks dey use time, so dem show here too.
• Accuracy: targets wey you hit divided by all your clicks inside the play area.
• Fastest hit: the one target wey you hit quickest.
• Throughput: speed and difficulty inside one number, for bits per second (see below). Higher one better.
• The chart: each dot na one target, showing the time against how hard e be. The dashed line na your own Fitts's-law line.

1. Press Start for the middle of the play area. Clock go start.
2. Hit the targets. 30 round targets go show one after another, in three sizes; each one go far from the last one. Click wey miss go count against your accuracy; the target go stay until you hit am.
3. See your result, with your Fitts's-law line.

If you share your score, your friend go get exactly the same targets.

We calculate throughput from each target's distance and size as e show here, without the corrections wey the lab standard dey add for where clicks land [3]. Na why we talk make you compare with your own runs.

• Distance and size. Far, small targets take the longest: na Fitts's law be that [1, 2].
• The device. Mouse, touchpad and finger fit give different results. For lab studies, touchpad much slower pass mouse [3].
• Speed or care. If you rush, you go miss more, and every miss dey use time. The best scores come when you keep steady pace.
• Age. For one study, adults make fewer errors pass children aged 12 to 14, and dem faster pass people aged 61 to 69 [6].
• Practice. Times dey drop for the first few runs as you get used to the game.

The aim trainer dey measure how fast and accurate you point with this device today. E no be test of intelligence or your brain health, and short score no dey predict how good you go be for games.

Compare am with your earlier runs on the same device; new mouse or different screen size dey change the numbers.