Thirty targets. How fast?

What the numbers mean

Average time per target is the total time from the first hit to the last, divided across the targets. It includes seeing the target, moving to it and clicking, so it is always slower than a pure reaction-time score. Accuracy is hits as a share of all clicks.

There is no official scale. A big monitor means longer travel between targets; a trackpad is slower than a mouse; a phone is different again. Your own earlier runs on the same setup are the only fair comparison.

How to get quicker

• Look first, then move. Your eyes arrive before your hand. Let them lock on, then move in one motion.
• Do not rush the click. A miss costs a second click. A steady hit is faster than two hurried ones.
• Stay loose. A tight grip makes small corrections jerky. Rest your forearm and let your wrist do the fine work.
• Train small. A few runs on the small targets make the medium ones feel enormous.

Speed against accuracy

The two pull against each other, a relationship ergonomics researchers have described since the 1950s with Fitts's law: the smaller and farther a target, the longer it takes to hit. The fastest run is rarely the frantic one; it is the one with no misses.