Dr. Bellanca is designing a study to measure the effect of a friendship intervention on bullying in middle school
Group A receives extra classes in an unrelated topic, Group B receives extra classes on friendship once a month, and Group C receives extra classes on friendship once a week. She hypothesizes that Group C will show the greatest reduction in bullying. What is the independent variable in this study?
a. the age of the children
b. the reduction in bullying
c. the frequency of the intervention
d. the number of students who take part in the intervention
Answer: C
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The two main divisions of the nervous system are the ________ and ________
a) brain; spinal cord b) autonomic; somatic nervous systems c) peripheral nervous system; central nervous system d) glands; muscles
The textbook mentions all of the following ways in which drugs can affect the brain
EXCEPT a. inhibit the release of neurotransmitters. b. interfere with reuptake. c. reroute action potentials to dendrites. d. mimic the effects of neurotransmitters on postsynaptic receptors. e. stimulate the release of neurotransmitters.