Social & Preventive Medicine Most impoant factor which decides the results of a randomized controlled trial is: March 2005 A Inclusion of all age groups B 50% treated with placebo and 50% with drugs C 100% follow up D Effective randomization 💡 Explanation Most impoant factor which decides the results of a randomized controlled trial is: March 2005 ✓ Correct Answer: D. Effective randomization