A newspaper headline heralds a finding that an excess of a particular brain chemical is the cause of a certain mental disorder. The article is not convincing to you. What potential flaw do you note in the report?
a. The chemical change could be due to other variables.
b. Chemical changes cannot bring about changes in behavior.
c. The genetic code associated with the chemical has not been identified.
d. Such findings are very difficult to generalize to the entire population.
Answer: a.
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A) 20 B) 36 C) 75 D) 89
Most of children's injuries in organized sports are
A) serious. B) minor. C) life threatening. D) due to exercising in cold weather.
According to Elisabeth Kübler-Ross, dying people who are in the bargaining process stage always keep their promises.
Answer the following statement true (T) or false (F)
What is measured by the numerator of the z-score test statistic?
A) ?The average distance between M and µ that would be expected if H0 was true B) ?The actual distance between M and µ C) ?The position of the sample mean relative to the critical region D) ?Whether or not there is a significant difference between M and µ