The third variable problem occurs when one variable, for
example your independent variable, is actually linked to another variable that you are not manipulating or controlling for. In this example, what might the third variable be? (Example: The larger a child's shoe size, the more vocabulary she has.)
a) her gender
b) her age
c) her dress size
d) her language skills
Answer: b
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Which brain abnormality is common among people with schizophrenia, compared to average?
a. Smaller neurons and fewer synapses in the prefrontal cortex b. Slower conduction of action potentials in the amygdala and hippocampus c. Lower concentrations of the neurotransmitter dopamine in several brain areas d. Smaller ventricles in the two cerebral hemispheres
Suppose that you are searching a list of college I.D. numbers to determine what grade you received on an exam. The system in your brain that is most involved in this search is the
a. cerebral blood flow system. b. executive attention network. c. frontal lobe of the cerebral cortex. d. orienting attention network.
Asthma attacks are triggered by a variety of factors. Among the most common are
a. respiratory infections. b. exercise. c. stress. d. all of these answers.
A person with major depressive disorder who also has a ruminative coping style is most likely to:
A. develop learned helplessness. B. repress all feelings of sadness and frustration. C. engage in manic behaviors that compensate for the depression. D. enter or remain in a depressive episode.