Science Buddies: "Ask an Expert"

I've just chosen this topic and want to get started. Do you suggest doing the Positive Control Experiment and the Interference Test on the same group of volunteers? I.e. first I would an individual the Positive Control Experiment and then give the same individual the Interference Test?

Thank you.

Hi Rydeal -

You would want to run both tests on the same group of volunteers. As you read through the project idea, can you see how you might identify your "variables" for this project?

I wanted to post the link here to the project idea so that Experts can easily access the project you've selected:

https://www.sciencebuddies.org/science- ... p029.shtml

Amy
Science Buddies