ABDPH Dental Public Health Practice Questions - American Board Of Dental Public Health (ABDPH) Certification Exam

A randomized controlled trial comparing fluoride varnish to placebo is the GOLD STANDARD primarily because:

It is the least expensive design Randomization balances known and unknown confounders across arms It always uses the largest sample sizes It eliminates the need for informed consent

Correct Answer:

Randomization balances known and unknown confounders across arms

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