Examlex
When comparing two group means, the _____ refers to the number of scores free to vary once the means are known.
Representative Sample
A sample that accurately reflects the characteristics of the population from which it is drawn.
Survey
A method of gathering information from a sample of individuals, often used to collect data on opinions, behaviors, or characteristics.
Population
A group of individuals of the same species living and interacting within a given area at a particular time.
Advance Knowledge
Prior information or understanding gained before engaging in a specific task or situation.
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