A researcher examines the effects of marijuana on cognitive functioning. He assigns adults who receive less than 5 hours of sleep per night to the experimental condition and adults who receive 8 hours or more of sleep per night to the control condition. He concludes that marijuana does lower cognitive functioning. Sleep is:
a. an independent variable
b. a dependent variable
c. confounding variable
d. the experimental group
e. the control group
Ans: a. an independent variable
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Karen and Rob are talking to a mutual friend who suddenly breaks down and asks if one of them can stay and talk about an important problem. Who is probably more likely to help?
a. Karen is more likely to help. b. Rob is more likely to help. c. Both are equally likely to help. d. Whether Karen or Rob is more likely to help depends on the gender of the friend.
Genetic counseling is highly recommended for all couples planning to have children.
Answer the following statement true (T) or false (F)
One of the unique aspects of self-management programs for dealing with chronic pain is the greater focus on:
a. the patient's role c. hypnosis b. medication d. the health care system
During drug use, new ______ pathways develop between the nucleus accumbens and the prefrontal cortex.
A. serotonergic B. glutamatergic C. GABAergic D. cholinergic