For my science experiment, I am testing 3 people's typing speeds with 5 different instruments each. How do I find the best instrument that they improved on the most, even though each person has a different instrument that they improved on the most?

Answer 1

It must be one of three that they improved on the most, but you can't pick which of the three unless you have specific data on the speeds. I would hope you are controlling the factors related to the data being typed.