Which type of drugs has a medical use and is therefore prescribed by doctors?
a. ?LSD
b. ?Ecstasy
c. ?PCP
d. ?Oxycodone
ANSWER:
d
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Infants begin cooing
a. at birth. b. at one week of age. c. during the second month of life. d. during the fourth month of life.
Which of the following is an accurate statement about posttraumatic stress disorder (PTSD)?
a. Acute stress disorder is diagnosed instead of PTSD if a person's symptoms begin 6 months or more after the traumatic event. b. PTSD occurs in all individuals who experience a traumatic event c. Most people diagnosed with acute stress disorder do not eventually develop PTSD. d. A diagnosis of acute stress disorder will change to a diagnosis of PTSD one month after the traumatic event occurs.
If you expected unequal frequencies in categorical data, but you weren’t sure what values to use as your expected frequencies, how might you make this decision?
a. Use equal frequencies because there is no way to actually know. b. Use your best estimate based on personal observation. c. Search published literature for a baseline. d. Ask a few friends for their opinions.
Periods of REM sleep alternate with periods of non-REM sleep in a cycle that recurs about every ______________ minutes or so
a) 20 b) 100 c) 150 d) 210