Uncontrollable variables from using humans?

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aznkarson
Posts: 2
Joined: Thu Feb 07, 2013 10:22 pm
Occupation: Student: 8th grade
Project Question: Caffeine's effect on onions.
Project Due Date: February 20
Project Status: I am finished with my experiment and analyzing the data

Uncontrollable variables from using humans?

Post by aznkarson »

One of my science fair ideas requires the use of humans, but what would I do with the variables involved? Such as when that person woke up, what they ate, how many steps they took when walking, etc etc etc. Is there anything I can do about this?
deleted-143835
Former Expert
Posts: 118
Joined: Thu Aug 29, 2013 5:19 pm
Occupation: Mentor/Moderator
Project Question: I'm registering because I'm interested in volunteering with the Ask an Expert program to help students with their science fair projects.
Project Due Date: n/a
Project Status: Not applicable

Re: Uncontrollable variables from using humans?

Post by deleted-143835 »

Hi aznkarson,

Can you please post a few more details about your project? What exactly are you testing?
Some of the variables you are concerned about may be negligible and others may need to be regulated, but all this would depend on what your project is investigating.

Thanks,
scibuddyAK
deleted-132180
Former Expert
Posts: 302
Joined: Thu Apr 04, 2013 12:27 pm
Occupation: Graduate Student
Project Question: I am volunteering for the "Ask an Expert" program.
Project Due Date: I am volunteering for the "Ask an Expert" program.
Project Status: Not applicable

Re: Uncontrollable variables from using humans?

Post by deleted-132180 »

Hi aznkarson,

I also agree with the previous expert that if you provide more details about your project, we will be able to give you more helpful advice. What is your main question, what is the hypothesis you're testing, and what method are you going to use to test your hypothesis? For certain questions, it may be important to keep the factors you mentioned as consistent as possible between your test subjects, but for other questions, it may not matter all that much if those factors are different.

Connie
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