True or False:
4) There is a potential of information bias in a clinical trialwhere the clinician who ascertains the outcome is aware of thetreatment status of the participant being evaluated.
5) A confounding variable is a factor across which theassociation between the exposure and the outcome differ.
6) A cohort study was conducted to determine the association ofphysical activity and CHD in which the average age of thephysically active group is 10 years younger than the average age ofthe inactive group. Age is a confounder given that the risk of CHDincreases with age.
7) Systematic errors can be reduced by: minimizing the randomerror in the study and vice versa.
