Dr. Harrison writes down the names of her subjects on slips of paper and puts them in a box. She shuffles them and begins to draw names one at a time. She assigns every other subject to the experimental group of her experiment. This is an example of:

Question

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Dr. Harrison is using a random process (drawing names from a shuffled box) to assign subjects to the experimental group, which is an example of random assignment.

Dr Harrison Writes Down the Names of Her Subjects on Slips