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the selection of something for a specific purpose.
random assignment in a research study, the assignment of subjects to experimental (treatment) or control groups in such a way that each member of a sample has an equal chance of being assigned to a particular group. Random assignment ensures that the groups will be as alike as possible at the beginning of the study. Called also randomization.
n a method of allotting membership in research groups that tends to factor out any confounding variables so that any remaining differences can be attributed to the variable being researched.
unplanned, without direction or purpose.
where each member of the population has an equal opportunity of mating with every member of the opposite sex.
a list of numbers obtained by a standard randomization procedure; used commonly to select individual animals from a pack.
see random sample.
a procedure for selecting units from a group in such a way that each unit has an equal chance of being selected in the sample.
selection in such a way as to produce a random sample.
a group or quantity that takes various values, each with varying probabilities.