Examlex
Broadly defined, competition involves
Selection Differences
The biased allocation of participants into groups in an experimental design, which can affect the outcome.
Researchers
Individuals who conduct studies and investigations to discover new information and insights.
Pre-existing Groups
Groups in research studies that are formed based on characteristics or conditions present before the study, not created by the researcher.
Nonequivalent Control Group Design
An experimental design in which the control group is not randomly selected or assigned, potentially allowing for confounding variables.
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