To compensate for the correlational problem of metabolite studies,Paul should consider running a study where he

Question

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By administering drugs that increase or decrease the brain levels of neurotransmitters, Paul can manipulate the levels of neurotransmitters in the brain and establish a causal relationship. This would help to overcome the correlational problem seen in metabolite studies. Option A would not necessarily establish causality, but would rather reveal changes over time. Options C and D may suffer from the same correlational problem found in metabolite studies.

To Compensate for the Correlational Problem of Metabolite Studies,Paul Should