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Accounting /Experimental Design Concepts

Experimental Design Concepts

Accounting10 CardsCreated 3 months ago

This deck covers key concepts in experimental design, including independent and dependent variables, experimental units, control groups, replication, and hypothesis testing.

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Which of the following statements about good experiments is TRUE?

A good experiment includes replication by applying treatments to multiple experimental units
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Key Terms

Term
Definition
Which of the following statements about good experiments is TRUE?
A good experiment includes replication by applying treatments to multiple experimental units
Why is replication important to consider when designing an experiment?
Replication reduces the chances that a rare result leads you to an erroneous conclusion
What are the independent (treatment) and dependent (response) variables in the farmer's experiment?
The independent variable is presence/absence of nets and the dependent variable is number of berries harvested
What are the experimental units in his experiment?
The rows of bushes
What is the control group in his experiment?
The uncovered rows
The farmer's experiment was widely considered to be well-designed and well-implemented. After 8 weeks, he found no difference between groups, and the berry harvest was still lower than in previous years. What can he conclude about his hypothesis?
Birds are not eating the berries
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Experimental Design Concepts
TermDefinition
Which of the following statements about good experiments is TRUE?
A good experiment includes replication by applying treatments to multiple experimental units
Why is replication important to consider when designing an experiment?
Replication reduces the chances that a rare result leads you to an erroneous conclusion
What are the independent (treatment) and dependent (response) variables in the farmer's experiment?
The independent variable is presence/absence of nets and the dependent variable is number of berries harvested
What are the experimental units in his experiment?
The rows of bushes
What is the control group in his experiment?
The uncovered rows
The farmer's experiment was widely considered to be well-designed and well-implemented. After 8 weeks, he found no difference between groups, and the berry harvest was still lower than in previous years. What can he conclude about his hypothesis?
Birds are not eating the berries
The table below shows conditions for the control group and three possible experimental groups. Which experimental group should the researchers use to compare to the control group in order to test their hypothesis?
Experimental group 2
What would be an appropriate independent (treatment) variable for your experiment?
How much of the energy drink participants are instructed to drink right before the test
Of the following possible dependent (response) variables, which is the most appropriate for your experiment?
Participants' score on the concentration test
Which idea for increasing replication is most likely to improve your ability to test the hypothesis that watering frequency affects the taste of sage in general?
Increase the number of sage plants in both control and experimental groups