If You Were to Design a Long-Term Research Study to Determine

question 11

Multiple Choice

If you were to design a long-term research study to determine why there are no human births in Lapland during the months of August,September,and October,you would need to also examine a comparison population of humans in which births took place every month.The primary reason for including a comparison population within the design of this experiment would be to:

• A)accumulate more facts that could be reported to other scientists.
• B)test the effects of more than one variable at the same time.
• C)prove that there are no births in Lapland during August,September,and October.
• D)act as a control that would ensure that the results obtained are due to a difference in only one variable.

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