by tommywallach Mon Feb 25, 2013 5:10 pm
Hey Rich,
You totally nailed it. Let's just finish with the POE:
Conclusion: These can only be treated with medication that affects the balances
Premise: Some patients with mental disorders have disorders that result from chemical imbalances
(A) CORRECT. The argument assumes that chemical imbalances can only be addressed with medication. We need to know that psychotherapy can't do the same thing.
(B) The argument does not depend on medication being faster, but on medication being the only effective option. Also, it's about a specific subset of patients with mental disorders (the ones with chemical imbalances), not all of them.
(C) The argument would hold whether there was only one such mental disorder. If there are any, we need to know if medication is the solution for them.
(D) makes one of the mistakes that (B) makes. This argument is about only mental disorders caused by chemical imbalances, not all mental disorders (the stimulus already told us that some mental disorders can be effectively treated with psychotherapy).
(E) Again, we already know "Some patients with mental disorders can be effectively treated with psychotherapy," so this directly contradicts the passage.
Hope that helps!
-t