In experiments, what do we call the placement of subjects in experimental groups such that each subject has an equal probability of ending up in any experimental group?

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Random assignment is the placement of subjects in experimental groups such that each subject has an equal probability of ending up in any experimental group. This helps to ensure that any differences observed between groups are due to the independent variable being manipulated and not due to differences in the composition of the groups. Random forecasting and random selection are not relevant terms in experimental design. Random sampling refers to the selection of a sample from a population and is not specific to experimental design.

In Experiments, What Do We Call the Placement of Subjects