Experiment

 Experiment

is a procedure carried out to support, refute, or validate a hypothesis. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated.

 

Three key types of experiments are controlled experiments, field experiments, and natural experiments.

 

Experimental research is research conducted with a scientific approach using two sets of variables. The first set acts as a constant, which you use to measure the differences of the second set. Quantitative research methods, for example, are experimental.

 

Obtaining good results from a DOE involves these seven steps:

 

    Set objectives.

    Select process variables.

    Select an experimental design.

    Execute the design.

    Check that the data are consistent with the experimental assumptions.

    Analyze and interpret the results.

    Use/present the results (may lead to further runs or DOE's).

 

1 : a procedure carried out under controlled conditions in order to discover an unknown effect or law, to test or establish a hypothesis, or to illustrate a known law. 2 : the process of testing : experimentation. experiment.

 

The purpose of the experimental research strategy is to establish the existence of a cause- and- effect relationship between two variables. To accomplish this goal, an experiment manipulates one variable while a second variable is measured and other variables are controlled. 4 basic elements, Manipulation.