The most rigorous evaluation of a dietary hypothesis is the
A) case-control study.
B) randomized controlled trial.
C) cohort study.
D) cross-sectional study.

Question

Quizplus · Accepted Answer

The randomized controlled trial is the most rigorous evaluation of a dietary hypothesis because it involves randomly assigning participants to either an intervention group that follows the dietary hypothesis or a control group that does not follow the dietary hypothesis. This eliminates confounding variables and allows for a cause-and-effect relationship to be established between the dietary intervention and outcomes. Case-control studies, cohort studies, and cross-sectional studies all have limitations that make them less reliable than randomized controlled trials for evaluating dietary hypotheses.

The Most Rigorous Evaluation of a Dietary Hypothesis Is the