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What is the fundamental difference between testing keyboard response and testing mouse response?

Keyboard tests focus on key press speed and finger coordination, while mouse tests measure click speed combined with hand–eye coordination and fine motor control. Mouse tests also involve precise positioning and sometimes targeting, whereas keyboard tests are more about rapid, sequential finger movements without spatial targeting.

Is the brain's processing speed for keyboard inputs the same as for mouse inputs?

Not exactly. The brain processes both types of inputs quickly, but mouse inputs often require additional visual-motor integration, as they involve precise hand movements in relation to on-screen targets. Keyboard inputs are more linear and rely primarily on finger dexterity, so reaction patterns may differ slightly between the two.

Does this test measure reaction speed more or finger agility?