In experimental research, researchers use controllable variables to see if manipulation of these variables has an effect on the experiment's outcome. Additionally, subjects of the experimental research are randomly assigned to prevent bias or error.Continue Reading
How Experimental Research Works Experimental research uses manipulation of variables in a controlled testing environment to gain an understanding of the causal processes associated with the subject matter. In many cases, experimental research uses randomly assigned test subjects assigned to either an experimental group or a control group. Researchers manipulate specific variables involved with the testing to determine if changing these variables has any affect on the experiment's outcome. Usually, but not always, researchers restrict changes to one variable at a time. Randomization is preferred as it is thought to reduce bias so that test subjects can't knowingly have an influence on the outcome of the experiment.
Types of Experimental Research In experimental research, researchers use three basic experiment designs: pre-experiment, true experiment and quasi-experiment, as explained in the section below.
Types of Trials in Experimental Research When conducting the randomized testing in experimental research, researchers can use either single- or double-blind trials to further help eliminate bias.
The Goals of Experimental Research Determining the affects of various variables on a test subject represents the final goal of experimental research. This allows researchers to see if changing one thing about an experiment can change its outcome. In this way, researchers can eliminate the affect of outside factors on a subject and draw conclusions about the relationships between the many variables involved in an experiment. By using randomization, the researchers can eliminate as much bias as possible which might have an effect of an experiments outcome. A major downside to this type of experimentation is the large amount of time it takes and the higher costs associated with it.Learn more about Chem Lab