Experimental studies involve the manipulation of an independent variable, while controlling other extraneous variables. Nonexperimental studies do not involve the manipulation of variables and/or do not assume control over other variables. Do you think nonexperimental studies are less scientific? What is the reason for your explanation? Why is it necessary to have nonexperimental studies?© BrainMass Inc. brainmass.com September 20, 2018, 11:24 am ad1c9bdddf - https://brainmass.com/biology/research-methods-and-experimental-design/nonexperimental-studies-348826
A comparsion of experimental and nonexperimetal studies is made.