Taste-Test:How Many People Should I Test?

[smartgirl777]

How many people should I test in a taste-test of colas?

[staryl13]

Hi!
How many people you use as your sample size really depends on how much error you are willing to tolerate. Of course, the perfect experiment would try and eliminate all bias and outside variables with a huge sample size. You should try taking the largest sample possible for more accurate results. Here's a sample size calculator that will give you a rough idea of how large your sample size should be:
http://www.custominsight.com/articles/r ... ulator.asp
Also, this test has been done before, so try searching online for related information.
Good luck!

[Louise]

Hi!
How many people you use as your sample size really depends on how much error you are willing to tolerate. Of course, the perfect experiment would try and eliminate all bias and outside variables with a huge sample size. You should try taking the largest sample possible for more accurate results. Here's a sample size calculator that will give you a rough idea of how large your sample size should be:
http://www.custominsight.com/articles/r ... ulator.asp
Also, this test has been done before, so try searching online for related information.
Good luck!

Just to add to Staryl13's good advice...
Sciencebuddies also has a page on this topic.
https://www.sciencebuddies.org/mentori ... ants.shtml


Louise