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Which of the following indicate bias in an epidemiological study? A. Systematic error in collection of...

Which of the following indicate bias in an epidemiological study?

A. Systematic error in collection of data

B. Artificial increase or decrease in the number of participants present in any cell of the 2x2 table

C. The researcher has a monetary interest in the outcome of the study

D. Both A and B

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Answer #1

Answer: D) Both A and B

Explanation: Systematic error at the time of collection of data and artificial increase or decrease in the number of participants present in any cell of the 2x2 table indicate bias in an epidemiological study.

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