Confounding factor can be eliminated by-: (A) Correlation, (B) Standardization, (C) Randomization, (D) Matching
Answer is D. . a "confounding factor"is defines as one which is associated both with exposure and disease and is distributed unequally in study and control groups.a cofounding factor by itself is a risk factor for the disease independently of any association.which can be eliminated mainly by matching. ref:park&;s textbook,ed22,pg no 63