To eliminate the possibility that differences between subjects based on matching variables will affect results, researchers use a technique called random assignment.
Random Assignment. The important way that researchers accomplish this type of manage of extraneous variables across stipulations is called random task , which skill the usage of a random process to determine which contributors are tested in which conditions.
Random task of contributors helps to make certain that any variations between and within the corporations are now not systematic at the outset of the experiment. Thus, any differences between companies recorded at the cease of the scan can be extra confidently attributed to the experimental approaches or treatment.
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