A randomized clinical trial is done to examine the effect of a new anti-malarial drug compared to an old one. Randomization is used for allocation of subjects to either treatment or control (old drug) groups.
What is the value of randomization in this study?

Question

A randomized clinical trial is done to examine the effect of a new anti-malarial drug compared to an old one. Randomization is used for allocation of subjects to either treatment or control (old drug) groups.  
 What is the value of randomization in this study?

Accepted Answer

treatment and control groups are alike in baseline criteria

Answer

placebo effects are eliminated

Answer

assignment occurs by chance

Answer

bias in observations is eliminated

Answer

an equal number of persons will be followed in the treatment and control group

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A randomized clinical trial is done to examine the effect of a new anti-malarial...

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