Random assignment of subjects to study groups helps to control for Question 54 options directionality of exposure biases due to confounding timing of data collection None of these is correct

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Random assignment of subjects to study groups helps to control for Question 54 options  directionality of exposure  biases due to confounding  timing of data collection  None of these is correct

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Question: Random assignment of subjects to study groups helps to control for Question 54 options: directionality of exposure. biases due to confounding. timing of data collection.

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