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Nationalism contributed to the decline of
Control Groups
Groups in experimental research that do not receive the experimental treatment, allowing for comparison to assess the effect of the treatment.
Non-experimental Studies
Research methods that do not involve the manipulation of variables, often used to observe and analyze phenomena as they naturally occur.
Meta-analysis
A statistical technique that combines the results of multiple scientific studies to arrive at a conclusion about a body of research, often used to assess the effectiveness of interventions.
Inferential Statistics
A branch of statistics that allows one to make predictions or inferences about a population based on a sample.
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