Since their principal characteristic is their mind-altering quality, LSD, mescaline, and marijuana are classified as
a. amphetamines.
b. uppers.
c. downers.
d. hallucinogens.
D
You might also like to view...
Infant-directed speech typically provides particularly good examples of ____, which may help children to learn to distinguish these sounds more effectively
a. vowels b. consonants c. syllables d. stresses
Vygotsky's theory emphasizes the importance of culture in children's cognitive development.
Answer the following statement true (T) or false (F)
An effect size (d) of .20 is considered:
a. small b. large c. moderate d. significant
Before going to sleep, a man checks his alarm clock to make sure it is set. A short while later, he checks it again and turns off his light. Then he turns the light back on and checks his alarm again
This goes on repeatedly each night until he is so tired he falls asleep. The man appears to have a specific type of a. personality disorder. b. dissociative disorder. c. schizophrenia. d. anxiety disorder.