Draw conclusions implying cause and effects

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Reference no: EM131797338

Treatment of Diarrhea

A research group compared probiotics with antibiotics to know the best way to treat diarrhea. It showed that consumption of probiotics was a better way to cure diarrhea than antibiotics.

a. What do you need to know to decide whether this was an observational study or a controlled experiment?

b. Why do controlled experiments with randomization allow us to draw conclusions implying cause and effect?

Reference no: EM131797338

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