A researcher discovered that people who have low levels of immune-system activity tend to score much lower
on tests of mental health than do people with normal or high immune-system activity. The researcher concluded
from this experiment that the immune system protects against mental illness as well as against physical disease.
The researcher's conclusion depends on which of the following assumptions?
(A) High immune-system activity protects against mental illness better than normal immune-system activity
(B) Mental illness is similar to physical disease in its effects on body systems.
(C) People with high immune-system activity cannot develop mental illness.
(D) Mental illness does not cause people's immune-system activity to decrease.
(E) Psychological treatment of mental illness is not as effective as is medical treatment.
Let's restate the argument :Premise:
On tests of mental health : Scores of ppl with LOW ISA << Scores of ppl with NORMAL or HIGH ISA (ISA = immune-system activity)Conclusion:
immune system protects against mental illness as well as against physical disease.
A- Wrong since we are comparing normal and high ISA with low ISA
B- Out of scope : the argument never stated any effects on body systems from either mental illness or physical disease.
C- Out of scope
: if we negate it : mental illness does cause people's ISA to decrease and that let the conclusion not valid.
E- Out of scope
Thanks for the question
i hope i get it correct this time
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