This is called complex reaction time. Are there any other tests that people can do? Yes. There is a simple test you can do with a ruler. The task is to get someone to hold a ruler above your hand and ...

Children from New Invention Junior School in the West Midlands investigate their reaction times and how these are affected by distractions. They use the ruler-drop test to measure how fast they ...

You could carry out a number of investigations to determine the effect of a specific factor on human reaction times. A simple method to measure the effect is to use the ruler drop test.