Dr. Benjamin Rush treated yellow fever by bloodletting. He attributed each recovery to the bloodletting and each death to the severity of the yellow fever. What rule of science did he violate?
What will be an ideal response?
A good answer will include the following key points.
• Rush violated the principle of falsifiability.
• There was no possible counterevidence that could refute his theory.
• He also did not look for contradictory evidence and so was guilty of confirmation bias.
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What is the most likely thing that a subject in a double-blind procedure would say?
A. "It is a great honor to have been selected for the experimental group." B. "Being in the control group is boring." C. "I have no idea if I am in the experimental or control group and the researcher doesn't know either!" D. "I wonder what group I am in? I suppose I could ask the researcher and she would know."
Forty-eight-year old Marcy rides her bicycle through the park with her husband. While approaching a pot hole, she does not turn in time to miss it. She remarks to her husband, "I just don't seem to react as quickly as I used to." Why have Marcy's reaction times slowed over the years?
A. loss of neurons B. loss of muscle tone C. loss of myelination D. loss of bone density
Which of the following would be a consequence of the sodium-potassium pump being inactivated?
A. Too many potassium ions would accumulate inside the cell. B. Too many sodium ions would accumulate outside of the cell. C. Too many chloride ions would accumulate inside the cell. D. Action potentials would not be able to be generated.
Morrie and his family live in a large city well known for aggressive driving. His parents have been very careful to teach him to watch the street crossing lights. He knows when he sees the green walking man it is okay to cross the street after looking both ways and that if he sees the red hand he should not cross, even if there is no oncoming traffic. When Morrie is visiting his grandparents who
live in another large city with aggressive drivers, they are impressed when, at an intersection, he sees the word STOP in red light and tells his grandparents they are not to cross and when he sees the word WALK green light he checks both directions before crossing. What does Morrie’s ability to know when to cross the street, despite the differences in the signs, illustrate? a. transfiguration b. transposition c. transition d. transmutation