But how can you assess your reaction time in the comfort of your home? One easy assessment is a well-known experiment known as the "ruler drop test". You'll need the assistance of a family member ...

Have another player hold a 30-centimetre ruler, with the 0 cm mark just above your open grasp (see diagram). Then, have them drop it through your fingers within five seconds of starting the round.

What: Tests basic reaction time. How: Have a partner hold a ruler vertically a few feet in ... Rest your hands on top of your partner’s. When they drop a tennis ball, try to catch it before ...