The research method in which the researcher controls one variable and observes and records the results is called_____________?
Correct answer: C. experiment
- A. case study
- B. observation
- C. experiment
- D. social research
Explanation
An experiment involves deliberately controlling or changing one variable and observing its effect while recording the results. A case study and ordinary observation do not normally provide this level of variable control.
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About Macroeconomics
The economy is studied as a whole through national income, gross domestic product, inflation, unemployment, economic growth and business cycles. Coverage includes aggregate demand and supply, consumption and investment, money and banking, fiscal and monetary policy, exchange rates and balance of payments, which distinguishes macroeconomics from the study of individual markets.
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