Causal association factors can be revealed by ?
Ans. is 'a' i.e., Case Control study o In a case control study we proceed from the effect to cause therefore we can study many causal associated factors at a time.o Whereas in coho study we proceed from the cause to effect, therefore we can get to several diseases associated with the cause but we can not study many causal factors at a time.
Case control study
Coho study
Cross sectional study
Experimental study