A researcher is designing an experiment to see whether UV light therapy or the use of an oral supplement is more effective for the treatment of vitamin D deficiency in older adults in residential care facilities. Explain whether the researcher is more likely to use random assignment or random sampling to form the test groups and provide the reasoning behind the choice.

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The Answer of A researcher is designing an experiment to see whether UV light therapy or the use of an oral supplement is more effective for the treatment of vitamin D deficiency in older adults in residential care facilities. Explain whether the researcher is more likely to use random assignment or random sampling to form the test groups and provide the reasoning behind the choice.

A Researcher Is Designing an Experiment to See Whether UV