
Experiments and Observational Studies
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Medium
Standards-aligned
Amy Sanga
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of a sample survey?
To examine existing data for a sample of individuals
To record the behavior of animals in the wild
To gather information about a population without disturbing the population
To track the medical history of volunteers
Tags
CCSS.HSS.IC.B.3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between retrospective and prospective observational studies?
Retrospective studies attempt to influence the responses, while prospective studies observe individuals and measure variables of interest
Retrospective studies observe individuals and measure variables of interest, while prospective studies attempt to influence the responses
Retrospective studies track individuals into the future, while prospective studies examine existing data
Retrospective studies examine existing data, while prospective studies track individuals into the future
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the definition of an observational study?
An observational study observes individuals and measures variables of interest but does not attempt to influence the responses
An observational study observes individuals and measures variables of interest to influence the responses
An observational study observes individuals and measures variables of interest to disturb the population
An observational study observes individuals and measures variables of interest to gather information about a population
Tags
CCSS.HSS.IC.B.3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the definition of a response variable?
A response variable does not measure an outcome of a study or help explain or predict changes in a response variable
A response variable measures an outcome of a study
A response variable measures an outcome of a study and helps explain or predict changes in a response variable
A response variable helps explain or predict changes in a response variable
Tags
CCSS.6.SP.B.5B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the definition of confounding?
Confounding occurs when two variables are associated in such a way that their effects on a response variable cannot be distinguished from each other
Confounding occurs when two variables are not associated in such a way that their effects on a response variable can be distinguished from each other
Confounding occurs when two variables are associated in such a way that their effects on a response variable can be distinguished from each other
Confounding occurs when two variables are not associated in such a way that their effects on a response variable cannot be distinguished from each other
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of a control group in an experiment?
To provide a baseline for comparing the effects of other treatments
To provide an inactive treatment for comparison
To provide an active treatment for comparison
To provide no treatment at all for comparison
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the definition of the placebo effect?
The placebo effect describes the fact that some subjects in an experiment will respond unfavorably to any treatment, even an inactive treatment
The placebo effect describes the fact that all subjects in an experiment will respond unfavorably to any treatment, even an inactive treatment
The placebo effect describes the fact that some subjects in an experiment will respond favorably to any treatment, even an inactive treatment
The placebo effect describes the fact that all subjects in an experiment will respond favorably to any treatment, even an inactive treatment
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