Which of the Following Is the Source of Confounding Variables

question 9

Multiple Choice

Which of the following is the source of confounding variables in cohort studies?

• A) The researcher's decision regarding whom to ask to be in the study
• B) The fact that the two groups may be different in ways other than the risk factor of interest
• C) The researcher's choice regarding the outcome to study
• D) The use of retrospective methods rather than prospective methods

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Definitions:

Identical Net Cash Flow

A situation where the inflows and outflows of cash over a period are exactly the same, leading to no net change in cash position.