In the experimental method, how many groups are typically made?
تجرباتی طریقہ میں، عام طور پر کتنے گروپ بنائے جاتے ہیں؟
- The treatment group and the placebo group
- The observational group and the intervention group
- The experimental group and the survey group
- The experimental group and the control group
Explanation
There must be at least two groups in any valid experiment: the experimental and the control group.
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