Social & Preventive Medicine Epidemiology faab838f The major purpose of randomization in a clinical trails is to- A Facilitate double blinding B Help ensure the study subjects are representative of general population C Ensure the groups are comparable in base line characteristics D Reduce selection bias in allocation of treatment High-Yield Explanation Bias may arise due to Bias on the pa of paicipants -subject variations Observer bias Bias in evaluation (refer pgno:83 park 23 rd edition )