Select all of the responses which are correct Bias will occur when there is (sel

Question

Select all of the responses which are correct

Bias will occur when there is (select each that is or are true):

a. A systematic difference between the exposed and unexposed groups that distorts the relationship between the exposure and the outcome of interest.

b. A difference between those with and without incident disease during the study in baseline prevalence of the exposure of interest.

c. The subjects with and without disease in a case-control study have differential recall regarding consumption of olive oil, the exposure of interest.

d. There is inaccurate baseline classification of subjects as being disease free in a prospective cohort study.

Explanation / Answer

d. There is inaccurate baseline classification of subjects as being disease free in a prospective cohort study.

is is correct answer, when at the baseline there is fluctuation then there is maximam chance to occure the bias in the study.

thanks

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