In conducting an experiment, why would the researcher use random selection and random assignment? Include a definition for each
What will be an ideal response?
Random selection means that each participant in a sample population has an equal chance of being selected for the experiment. The reason researchers randomly select participants is to avoid any potential error or bias that may come from their knowingly or unknowingly wanting to choose the "best" subjects for their experiment.
The reason participants are randomly assigned to either the experimental or control group is to take into account or control for other factors or traits, such as intelligence, social class, age, sex, and genetic differences. Randomly assigning participants reduces the chances that these factors will bias the results.
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