How to figure out the independent and dependent variables?
in
A team of scientists is testing new drug, XYZ, on AIDS patients. They expect patients to develop fewer AIDS-related illnesses when given the drug, but they don't expect XYZ to cure Aids.
A. What is the independent variable?
B. What is the dependent variable?
C. What control treatment would be used?
Answer:
In order to find the answers for your question, consider the definition of the terms you're asking.
The Independent variable is exactly that, independent. It's something that you can change. In this case, since the scientists are testing the drug XYZ, that doesnt change, what DOES change though are the AIDS patients Thus, the patients are your independent variable.
The Dependent variable, is the variable that changes because of the independent variable. So if you changed patients what would you expect to change? In this case, you would except whether or not they develop fewer AIDS-realted illnesses to change right? So then their reaction to the drug would be your dependent variable.
A Control Group is basically a way to test whether or not what you are changing in your experiment actually has an effect on its outcome. In this case (hypothetically...) patients who dont get this XYZ drug, what if these patients naturally develop fewer AIDS-related illnesses by themselves. We have no idea whether or not their reaction is due to the drug or because they would naturally have fewer illnesses. In this case, a control group could be a group of patients who do not receive the drug XYZ, or a placebo group.
I know my explanation is probably a bit longer than what you were looking for, but I hope that in explaining it you'll be able to understand it and do future problems.
I need the variables for how to make an egg float...?
in
I'm doing my science fair project on how to make an egg float and I need to have the variables. The variables are Independent, Dependent, and Controlled Variable. Thanks.
Answer:
Try,
http://www.scifair.org/
http://www.usc.edu/CSSF/
http://www.libraryspot.com/features/scie…
http://scienceclub.org//kidproj1.html
http://www.energyquest.ca.gov/projects/
www.sciencetoymaker.org
http://makeprojects.com/Topic/Science_Projects
http://www.sciencebuddies.org/science-fair-projects/science_project_ideas.php
http://www.all-science-fair-projects.com…
How to make boobs bigger with home remides?
in
How to make your boobs bigger with home remides, like things you can make with at home, and drink, or eat?
Answer:
Hormones make them grow and you can make your own hormones. The natural way is by massage/nipple stimulation. It releases the hormone Prolactin which causes the glands in them to grow in prep to make milk. It takes a lot of work but it does work It takes weeks to see a difference if you have not been pregnant before. The side affects are reduced period cramps and reduced risk of breast cancer.
http://www.ehow.com/how_2276777_give-breast-massage.html
