Examlex
When a great many simple random samples are drawn from a population that is normally distributed,the same means will also be normally distributed only when the sample size is greater than 30.
Correlational Approach
A nonexperimental method in which the researcher merely observes whether variables are associated or related.
Field Experiment
A study conducted in a real-world setting where the researcher manipulates one or more variables to observe their effect on a specific outcome.
Meta-analysis
A statistical technique that combines the results of multiple scientific studies to obtain a more precise effect size of the results.
Factorial Design
An experimental setup that explores the effects of two or more factors across multiple levels to understand their interaction.
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