A Researcher Randomly Assigns a Large Group of Subjects Who

question 18

Multiple Choice

A researcher randomly assigns a large group of subjects who are hospital patients either to receive magnesium at bedtime or not to receive magnesium at bedtime, and then measures sleep quality and duration. What type or research is this?

• A)Correlational research
• B)Experimental research
• C)Descriptive research
• D)Quasi-experimental research

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