In a Study of the Effectiveness of Vitamin C in Reducing

question 73

Multiple Choice

In a study of the effectiveness of vitamin C in reducing the incidence of colds in grade 6 students,, a researcher plans to distribute all the vitamin C pill bottles to the girls and all the placebo pill bottles to the boys. What should the researcher do differently?

• A) He should allow the girls and boys to choose whether they want the vitamin C or placebo pills.
• B) He should distribute the bottles randomly, and then tell the students what they are getting.
• C) He should have students randomly choose the bottles but not tell him what group they received until the end of the study.
• D) He should arrange that neither he nor the students knows the contents of the randomly distributed pill bottles.

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Definitions:

Net Present Value

The contrast between the present-valued cash inflows and outflows over a determined period.

Working Capital

The gap between a business's current assets versus its current liabilities, reflecting its short-term solvency and efficiency in operations.

Investment Project

An endeavor in which resources are invested with the goal of generating future returns, typically involving financial, time, or other forms of resources.

End of Project

The point in time when all objectives of a project have been achieved and all deliverables have been completed.