To demonstrate the impact of different environmental experiences on the brain, one group of rats was raised in a complex environment, while another group of rats was raised in a simpler environment. When their brains were compared, the rats raised in the more complex environments had
a. fewer synapses and shorter dendrites.
b. more synapses and longer dendrites.
c. fewer axons but more neurilemma.
d. less myelin and less neurilemma.
B
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According to Friedman et al. (1995), why haven't health psychology interventions been integrated to a greater extent into our health care system?
a. Biological origins of diseases have been emphasized over psychosocial explanations. b. Physicians are unaware of the data supporting health psychology interventions. c. both of the above d. neither of the above
When Lani has an unpleasant task to complete, such as writing a term paper, she sets up rewards for herself. When she completes her outline, she watches TV for one hour. When she completes the rough draft, she spends an evening relaxing with her friends. When she finishes the final draft, she goes to the mall and purchases a CD she has been wanting. The __________ best explains Lani's behavior.
A. instinct doctrine B. arousal theory C. drive reduction theory D. incentive theory
In an experiment, a researcher manipulates one variable to see how it affects a second variable. The manipulated variable is called the ______
a. dependent variable b. experimental variable c. independent variable d. placebo
Kate, Sue, and Sasha are in the dramatic play area. Kate says that she will be the doctor, Sue is
the nurse, and Sasha is the sick person. Kate and Sue proceed to open the doctor and nurse kits and Sasha reclines on the floor. These children are a. demonstrating global empathy. b. demonstrating moral emotions. c. following social scripts. d. playing around.