Experimental and control group

Explain the terms experimental group and control group and illustrate the two concepts using the following example. 'Dr.So measures the blood pressure of 50 women. She has 25 women exercise three times a week for eight weeks. She instructs the other 25 women exercise. After the eight weeks, Dr So measures... 顯示更多 Explain the terms experimental group and control group and illustrate the two concepts using the following example.


'Dr.So measures the blood pressure of 50 women. She has 25 women exercise three times a week for eight weeks. She instructs the other 25 women exercise. After the eight weeks, Dr So measures the blood pressure of all 25 women. She finds that blood pressure decreased for the exercising women ,but not for the others'
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