A scan shows that a particular substance has spread throughout Xiao Ling's body via the bloodstream but has not entered her brain. This finding demonstrates the existence of
A. the blood-brain barrier.
B. the doctrine of specific nerve energies.
C. blood efficacy.
D. medicine effects.
Answer: A
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Answer the following statement true (T) or false (F)
The process of counterbalancing test-taking order is used in which method of estimating reliability?
a. Test-retest reliability b. Alternate-forms reliability c. Internal reliability d. All of the above use counterbalancing
A problem with the five-factor model is that:
a. its comprehensiveness makes it too unmanageable b. it is too limited and simplistic to give meaningful descriptions of personalities c. it is based upon unreliable statistical techniques d. it takes into account genetic influences
Marriage to a child’s biological father by an unmarried single mother benefits children only when ________
A) the child has not displayed adjustment problems B) the mother has already overcome financial hardship C) the child has reached middle childhood D) the father is a reliable source of economic and emotional support