AnswersMadison 2017 Phy Sci A-35 SSScience-Based Communication

Science-Based Communication Answers

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1
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The process through which professional scientists evaluate the quality of each other’s research is called

A
group counsel.
B
group review.
C
peer counsel.
D
peer review.
2
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A wildlife researcher weighed all the raccoons that were trapped in suburban neighborhoods before they were released back into the wild. The researcher used this data to conclude that the raccoons in the state were getting heavier. What error did the researcher make?

A
The sample is biased because it only weighed raccoons that were trapped in suburban neighborhoods.
B
The researcher should not have released the raccoons back into the wild.
C
The sample is biased because the averages of the weights were not calculated.
D
The researcher should have weighed other animals besides raccoons.
3

Which statement describes a problem with the peer review process in scientific research?

A
It can sometimes reject important new ideas or novel techniques.
B
It forces new scientists to meet the same standards that established scientists meet.
C
It always requires scientists to have to reanalyze their data.
D
It often makes it more difficult to justify a conclusion.
4

Which statement describes the most common ways in which students and professional scientists communicate the results of their scientific research?

A
Students communicate results in oral reports to the class, and professional scientists communicate results in written reports.
B
Students communicate results in scientific journals, and professional scientists communicate results in laboratory reports.
C
Students communicate results in laboratory reports, and professional scientists communicate results in scientific journals.
D
Students communicate results through secondary sources, and professional scientists communicate results through primary sources.
5

A television program that presents the most recent developments in cancer research would be considered

A
a primary source.
B
a secondary source.
C
an original source.
D
an unbiased source.
6

Which source is considered a primary source of scientific information?

A
an original research article in a scientific journal
B
a report about a new scientific discovery in the newspaper
C
a book that compiles important new research findings
D
a public lecture at a museum given by the scientist who did the research
7

Calibration of a measuring instrument is

A
the process of breaking in the instrument when it is new.
B
the process of putting oil in all the moving parts of the instrument.
C
comparing and adjusting the instrument’s measurement to get the data that you expect during your experiment.
D
comparing and adjusting the instrument’s measurement to match a known quantity or another correctly functioning instrument’s measurement.
8

A medical researcher experimented with the effects of calcium intake on the healing time of broken bones. People who had similar broken bone injuries were divided randomly into two groups, one of which received a calcium supplement and one of which received a placebo. The data showed that there was no significant difference in healing times between the two groups, so the researcher concluded that calcium intake has no effect on bone healing time. Why is the conclusion of the researcher not justified?

A
The researcher did not use a control group.
B
The bone injuries in different people cannot be compared.
C
The overall calcium intake of the two groups was not considered.
D
The data can only give a statistical probability, so no conclusion can be made.
9

A student is conducting an experiment to determine how cold temperatures affect the growth of tadpoles in a tank of water. Which instrument would be most appropriate to use in this experiment?

A
a calibrated bulb thermometer that has a readout from –15°C to 25°C
B
a calibrated digital thermometer that has a readout from 50°C to 250°C
C
an uncalibrated bulb thermometer that has a readout from 0°C to 100°C
D
an uncalibrated digital thermometer that has a readout from –10°C to 100°C
10

Which statement describes a common measurement error?

A
a flaw in the design of an experiment
B
using inconsistent methods for collecting data
C
using instruments that have not been calibrated
D
selecting experimental subjects in a way that is biased

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