BIOL 1013 Exam 1 (Ch. 1-4 & M1) – Questions With
Appropriate Solutions
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Terms in this set (67)
When scientists carry out an c. hypothesis
experiment, they are testing a
a. theory.
b. question.
c. hypothesis.
d. control.
e. variable.
Of the following, which is the earliest e. asking a question about an observation.
step in the scientific process?
a. generating a hypothesis
b. analyzing data
c. conducting an experiment
d. drawing a conclusion
e. asking a question about an
observation
In a controlled experiment, which b. the control group.
group receives a placebo?
a. the experimental group
b. the control group
c. the scientist group
d. the independent group
e. all groups
,In the rat experiments discussed in this c. radiation; cancer
chapter, the independent variable is
_________________ and the dependent
variable is _______________.
a. radiation; no radiation
b. cancer; radiation
c. radiation; cancer
d. cancer; no cancer
e. rats; radiation
You carry out a clinical trial to test d. the drug dosage
whether a new drug relieves the
symptoms of arthritis better than a
placebo does. You have four groups
of participants, all of whom have
mildly painful arthritis (rated 6 on a
scale of 1 to 10). Each group receives a
daily pill as follows: group 1 (control),
placebo; group 2, 15 mg; group 3, 25
mg; group 4, 50 mg. At the end of 2
weeks, participants in each group are
asked to rate their pain on a scale of 1
to 10. What is the independent variable
in this experiment?
a. the amount of pain experienced at
the start of the experiment
b. the amount of pain experienced at
the end of the experiment
c. the degree to which pain symptoms
changed between the start and the
end of the experiment
d. the drug dosage
e. The independent variable could be
a, b, or c.
, In which of the following would you a. a randomized clinical trial with 15,000 subjects
have the most confidence?
a. a randomized clinical trial with
15,000 subjects
b. a randomized clinical trial with
5,000 subjects
c. a case-control study with 5,000
subjects
d. an endorsement of a product by a
movie star
e. a report on a study presented by a
news organization
What is the importance of statistical e. both b and c
tests?
a. They can reveal whether the data
have been fabricated.
b. They can be used to support or
reject the hypothesis.
c. They can be used to determine
whether any observed differences
between two groups are real or a
result of chance.
d. all of the above
e. both b and c
Appropriate Solutions
Save Groups
Terms in this set (67)
When scientists carry out an c. hypothesis
experiment, they are testing a
a. theory.
b. question.
c. hypothesis.
d. control.
e. variable.
Of the following, which is the earliest e. asking a question about an observation.
step in the scientific process?
a. generating a hypothesis
b. analyzing data
c. conducting an experiment
d. drawing a conclusion
e. asking a question about an
observation
In a controlled experiment, which b. the control group.
group receives a placebo?
a. the experimental group
b. the control group
c. the scientist group
d. the independent group
e. all groups
,In the rat experiments discussed in this c. radiation; cancer
chapter, the independent variable is
_________________ and the dependent
variable is _______________.
a. radiation; no radiation
b. cancer; radiation
c. radiation; cancer
d. cancer; no cancer
e. rats; radiation
You carry out a clinical trial to test d. the drug dosage
whether a new drug relieves the
symptoms of arthritis better than a
placebo does. You have four groups
of participants, all of whom have
mildly painful arthritis (rated 6 on a
scale of 1 to 10). Each group receives a
daily pill as follows: group 1 (control),
placebo; group 2, 15 mg; group 3, 25
mg; group 4, 50 mg. At the end of 2
weeks, participants in each group are
asked to rate their pain on a scale of 1
to 10. What is the independent variable
in this experiment?
a. the amount of pain experienced at
the start of the experiment
b. the amount of pain experienced at
the end of the experiment
c. the degree to which pain symptoms
changed between the start and the
end of the experiment
d. the drug dosage
e. The independent variable could be
a, b, or c.
, In which of the following would you a. a randomized clinical trial with 15,000 subjects
have the most confidence?
a. a randomized clinical trial with
15,000 subjects
b. a randomized clinical trial with
5,000 subjects
c. a case-control study with 5,000
subjects
d. an endorsement of a product by a
movie star
e. a report on a study presented by a
news organization
What is the importance of statistical e. both b and c
tests?
a. They can reveal whether the data
have been fabricated.
b. They can be used to support or
reject the hypothesis.
c. They can be used to determine
whether any observed differences
between two groups are real or a
result of chance.
d. all of the above
e. both b and c
