How Many Variables Should an Experiment Have?

Answer

The purpose of an experiment is to determine a cause and effect relationship. When you are conducting an experiment, you should use only one variable. This is due to the possibility of having a change occur during the experiment. If that happens, and you use more than one variable, you wouldnâ€â&dbquo;¢t be able to tell which one caused the change, or if they both did. By using one, the person doing the experiment is able to observe the change more accurately.
Q&A Related to "How Many Variables Should an Experiment Have?"
In an experimental study, the variables are the independent and dependent variables and as little other confounding factors as possible. This design frequently uses experimental and
http://www.ehow.com/info_8600707_variable-setup-ex...
I need to know to.
http://wiki.answers.com/Q/What_is_The_variable_set...
Because if you change more than one variable at a time, you can't tell which is affecting the results.
http://wiki.answers.com/Q/Why_is_it_important_to_o...
The dependent variable is the variable that is going to be observed and wont be changed and the independent is what will be changed.
http://wiki.answers.com/Q/What_r_the_independent_a...
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