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A scientific study found different outcomes between two groups but the groups were already different before the experiment. What is the most appropriate conclusion about causation?

Answer and explanation

Correct answer: Pre-existing differences may also have affected the outcome

Baseline differences may be confused with the treatment effect. Check initial similarity before claiming causation.

Related tags

Baseline DifferenceCausal InferenceExperimental DesignNature And Meaning Of ScienceExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScienceClass 9 Mcq

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