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Compare the development of "canyon cultures" and "Mississippian cultures" in North America during the early thirteenth century.In what ways did isolation facilitate cultural development? What role did trade play in supporting these cultures in a relatively hostile climate?
Control Group
A group in an experiment that does not receive the treatment or intervention being tested, used as a comparison to measure the effect of the treatment.
Meta-Analysis
A statistical technique for combining the findings from independent studies to identify trends or common effects.
Experiments
Scientific procedures undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
Weighting
The process of assigning different levels of importance or coefficients to various elements in a calculation or assessment.
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