Question 7
A researcher was interested in the possible link between brain tumours and depression in elderly patients. She
conducted an intensive study of six individual patients in a hospital using diagnostic tests, patients'interviews,
and examination of the patients'medical records.
One limitation of this method for her research is that
A. the research is not controlled for potential confounding variables.
B. the reliance on patients'reports will not produce very detailed information.
C. the patients cannot be randomly allocated to the control and experimental groups.
D. it is too easy to generalise the results of this type of research.
answer is A right?
Question 11
Which of the following is true of the autonomic nervous system (ANS)?
A. The ANS is a vital part of the central nervous system (CNS).
B. It is impossible to consciously influence the functioning of the ANS.
C. The ANS ensures that the constantly changing energy requirements of the body are met.
D. The ANS relays messages between the CNS and the voluntary muscles that control our internal organs
and glands.
answer C?