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WorksheetsResearch 8 - Q3 - Quiz No. 1
Total questions: 10
Worksheet time: 15mins
Which of the following best describes a research design?
It serves as a framework for the literature review and answering the
research questions.
It is the overall strategy that you choose to integrate while planning the
research proposal.
It makes the conclusion valid because it takes into consideration all the
assumptions that went into deriving the various inferences.
It ensures that appropriate data will be obtained that permits an
objective analysis, leading to valid inferences about the stated problem.
How many tests do homogeneous experimental units be subjected to the
same treatment under similar conditions?
at least one replicate
minimum of two replicates
minimum of three replicates
multiple times
Anna thinks that if people are exposed to ultraviolet light then they are more
likely to get skin cancer. She designs an experiment wherein sample A
consisted of people who were exposed to ultraviolet light and sample B was not.
Which is the independent variable in the problem?
skin cancer
samples A and B
exposure to ultraviolet rays
people who are exposed to ultraviolet light
A researcher plants three plots of flower seeds. He weeds and waters the first
plot every day. He weeds and waters the second plot every other day. He leaves
the third plot alone. After 12 weeks, the researcher measures the height of each
flower. What is the role of the plots of flowers in the experiment?
control group
experimental units
dependent variable
independent variable
Justin B. believes that the temperature lowering during the fall months is what
causes the color of the leaves to change. He set up an experiment wherein he
placed some plants in 80 degrees rooms and some in 60-degree rooms. He then
observed the color of the leaves for a total of 1 month. At the end of the month,
Justin observed that ¾ of the plants in the 60-degree temperature had been to
change colors and only ¼ of the plants in the 80-degree temperature began to
change colors. What is the dependent variable in the problem?
the changing colors of the leaves
temperature lowering during the fall months
¾ of the plants placed in the 60-degrees temperature
¼ of the plants placed in the 80-degrees temperature
The boss in a company wants to experiment if workers will complete the 2
months of stress management training will lessen their number of sick days in
a year. How should the control group in this experiment be treated?
no participation in the stress training program
complete the stress training program for 2 months
participate in different training programs in 2 months
participate in the stress training program at different number of days
What type of experiment design is used in the given situation?
complete block design
completely randomized design
randomized complete block design
both CBD and CRD
Which are the experimental units?
10 lettuce plants without fertilizer
10 lettuce plants with organic fertilizer
20 lettuce plants used in the experiment
40 lettuce plants used in the experiment
What is the purpose of keeping the same amount of water and sunlight for all lettuce plants?
serve as extraneous variables
to focus on the experimental treatment
to know other variables that may contribute to the growth of the lettuce
plants
both serve as extraneous variables and to focus on the experimental treatment
What is the primary purpose of having a group of 10 lettuce plants treated with commercial fertilizer?
control
extraneous
experimental
study subject
