Regarding anxiety disorders among Canadian university students, Norton et al. (2008) found that university students who meet the DSM-IV criteria for a panic attack had experienced _____ panic attacks on average over the previous year
a) 3
b) 4
c) 5
d) 6
Ans: b) 4
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What have researchers concluded from research on the concordance rates of monozygotic (MZ) and dizygotic (DZ) twins?
a. The role for genetics is much larger for males than it is for females. b. Genetic factors play a small role in etiology of alcoholism among women. c. Similar concordance rates for MZ and DZ twins suggest no significant role for genetics. d. Concordance rates suggest a role for genetics, and higher concordance rates among males reflect the higher prevalence of alcoholism among males.
When a conditioned response shows spontaneous recovery, the rejuvenated response typically
a. is weaker than the previously conditioned response. b. is stronger than the previously conditioned response. c. occurs before the conditioned stimulus. d. changes to an unconditioned stimulus.
A factor that varies in an experiment is called a
a. theory. b. statistic. c. constant. d. hypothesis. e. variable.
Difficulties often co-occur, or are ________, in the same adolescent
Fill in the blank with the appropriate word.