In all science experiments variables can be: changed measured, or controlled. It is really important that only one variable is changed and one measured. All others must all be kept the same.

Researchers generally want to see changes in their dependent variables. They want to see differences between their experimental and control groups. Because of this, the apparent changes seen in the ...

Some issues are too big and too complex to study in a lab or on paper—that’s where field experiments come in. In a laboratory setting, a researcher wants to control as many variables as possible.

Full factorial DOE, or Design of Experiments, is a method of designed experimentation. Using this method you manipulate the controllable factors (independent variables or inputs) in your process at ...