Experimental Design

What is changed or tested in an experiment
The experimental factor that is manipulated; the variable whose effect is being studied.

What is measured (data) in an experiment. The experimental factor that responds to the independent variable.

Variables kept constant in an experiment so they do not affect the results

the group in an experiment that receives the independent variable being tested

the group in an experiment that does not receive the independent variable. This group is used for comparison to determine the effect of the independent variable at the conclusion of the experiment

a testable prediction usually in the form of "If (IV) then (DV)"

a substance given to the control group in an experiment which will have no effect on the subject (ex: sugar pill)

"The effect of (IV) on (DV) in (organism)"