Which type of study is considered to be the gold standard for testing a research hypothesis?
a. a cross sectional survey
b. a case control study
c. a randomized controlled trial
d. a prospective cohort study
Ans: c. a randomized controlled trial
Health & Biomechanics
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Snus is a form of tobacco that is inhaled through the nose.
Answer the following statement true (T) or false (F)
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Fill in the blank(s) with correct word
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Answer the following statement true (T) or false (F)
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