Denise, a first year graduate student, is getting ready to begin a lab rotation with Dr. Hudson, an expert on the nodes of Ranvier. What should Denise know about the nodes of Ranvier before beginning her lab rotation?
a. Action potentials occur only at the nodes of Ranvier in unmyelinated axons.
b. Action potentials occur only at the nodes of Ranvier in myelinated axons.
c. Action potentials “skip” over the nodes of Ranvier in unmyelinated axons.
d. Action potentials “skip” over the nodes of Ranvier in myelinated axons.
ANSWER:
b
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According to terror management theory, how does culture solve the existential crisis created by awareness of death?
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In classical conditioning, extinction occurs when the ____
a. ?neutral stimulus is presented without the conditioned stimulus b. ?unconditioned stimulus is presented without the unconditioned response c. ?conditioned stimulus is presented without the unconditioned stimulus d. ?conditioned stimulus is presented without the conditioned response
The process of development of a prevention program from its original form in one setting to widespread implementation in many settings
a. action research b. scaling up c. inoculation d. demonstration
Dr. Ramos is interested in studying how indoor temperature can influence people’s sleep quality during the summer. A sample of 100 households is selected in which the residents keep their houses at 76 degrees during the summer. The residents wear a monitoring device that measures their sleep cycles for several nights to get baseline readings. Then, 50 of the homes are randomly assigned to the warm temperature condition in which the residents agree to keep their houses at 82 degrees Fahrenheit. In the other 50 houses, the residents agree to keep their houses at 70 degrees. For several nights, Dr. Ramos collects the sleep data for the people living in the houses to see how the residents’ sleep patterns have changed. Assuming that the study allows people to use as many or as few blankets
as they like, number of blankets would be a(n) ____ variable in the experiment a. correlational b. extraneous c. independent d. dependent