Most impoant factor which decides the results of a randomized controlled trial is: March 2005
Ans. D: Effective randomization It is a procedure by which the paicipants are allocated into groups usually called 'study' and 'control' groups. Randomization is the hea of control trials. It eliminates selection bias
Inclusion of all age groups
50% treated with placebo and 50% with drugs
100% follow up
Effective randomization