Experiment: a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
An experiment is a procedure that is carried out to support or refute a hypothesis, or to determine the efficacy or likelihood of something that has never been tried before. Experiments shed light on cause-and-effect relationships by demonstrating what happens when a specific factor is changed.
By manipulating variables that may give rise to behavior, the experimental method in psychology attempts to account for the activities of animals (including humans) and the functional organization of mental processes; it is primarily concerned with discovering laws that describe manipulable relationships.
The "experimental variable" is an important element defined in each experiment's metadata. Typically, the experimental variable is one or more of the sample attribute categories. It describes the differences between the test and control samples.
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