Tess agrees to sleep in an artificial setting for three nights so that researchers can obtain information about her brain and muscle activity during sleep. She is taking part in a research method called _________
a. a single-blind study
b. a double-blind study
c. naturalistic observation
d. laboratory observation
Answer: d
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The immediate cause of coronary heart disease (CHD) is
a. a family history of CHD. b. the deprivation of oxygen to the heart muscle. c. uncontrolled blood pressure. d. smoking.
Alternation between wakefulness and sleep depends completely on stimuli in the environment
a. True b. False Indicate whether the statement is true or false
During development, the hollow interior of the nervous system develops into ______.
A. cavities called ventricles B. the spinal cord C. the corpus callosum D. the occipital lobes
Rich's first psychology exam score is +1 standard deviation from the mean in a normal distribution. The test has a mean of 60 and a standard deviation of 6 . Rich's percentile rank would be approximately:
a. 70%. b. 84%. c. 66%. d. Cannot say from the information given.