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While random selection involves how participants are chosen for a study, random assignment involves how those chosen are then assigned to different groups in the experiment.Many studies and experiments actually use both of these techniques.
Further, let’s assume that greater physical activity is correlated with increased bone density but we didn’t measure it. Scenario 1: We don’t use random assignment and, unbeknownst to us, the more physically active subjects end up in the treatment group.
The treatment group starts out more active than the control group.
Random selection refers to a process that researchers use to pick participants for a study.
When using this method, every single member of a population has an equal chance of being chosen as a subject.
This process is an important research tool used in psychology research, allowing scientists to create representative samples from which conclusions can be drawn and applied to the larger population.
Random Sampling And Random Assignment Essay Formats For College