Twin studies of anxiety disorders indicate that generalized anxiety disorder has a heritability of
a. around 20 to 30 percent.
b. less than 5 percent.
c. over 50 percent.
d. almost 100 percent.
Answer: a.
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A television report described a case of a person who exhibited a disturbance in consciousness, memory deficits, and disorientation to time and place. If these symptoms developed within 24 hours, you believe the diagnosis is
a. apraxia. b. dementia. c. delirium. d. amnestic disorder.
Defining variables in practical terms is called ____
a. regression b. validity c. operationalization d. variability
Most depressed people show ____ activity in the ____ prefrontal cortex
a. increased; left b. decreased; left c. decreased; right d. increased; right and left
The simplest measure of variation is the ________
a. standard deviation b. range c. mean d. significance