When selecting controls for a case-control study, all of the following are considerations except: Controls should...

When selecting controls for a case-control study, all of the following are considerations except:

Controls should estimate the distribution of exposure in the source population

Controls should be sampled independently of exposure status

Controls need to be representative of at risk population.

Controls should not have the same exposure prevalence as the cases

None of the above.

Expert Solution

Since experimental controls are aimed at eliminating the effect of the extraneous factors i.e. factors apart from the experimental factors i.e. they are set to isolate the phenomenon being studied by contrasting the test group with the control group. So an experimental control has everything in its set but the exposure to the treatment i.e. the variable being studied. Hence this option: Controls should estimate the distribution of exposure in the source population is incorrect as controls are not aimed at making estimation they are aimed at making contrasts with the experimental group.

gladiator answered 2 years ago

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