18 Questions
What is the purpose of a control group in a true experimental design?
To compare the effects of the treatment against those without it
In a true experimental design, what does 'R' represent when described in context?
Randomization
What is the main difference between a pretest-posttest design and a posttest only design?
The inclusion of a treatment phase
What is the purpose of including a pretest in a true experimental design?
To establish a baseline for comparison
Why is it important to have an experimental and a control group in a true experimental design?
To reduce the impact of confounding variables
What is a key advantage of using a true experimental design over other research designs?
It allows for establishing cause-and-effect relationships
What is the purpose of using a pretest in an experimental design?
To establish a baseline before the treatment is administered
In a Solomon Four-Group Design, what distinguishes the two treatment groups?
The pretest results of one group
What type of clinical trial involves the use of a placebo in the control group?
Phase III clinical trials
Why might a pretest not be necessary if test subjects are randomly selected initially?
Because random selection ensures equivalence at the baseline
Why do nations around the world conduct clinical trials for vaccines?
To generate evidence leading to changes in public policy
What characteristic defines a Posttest Only Design in research?
It only includes a post-test and no pre-test
What is the primary characteristic of an exploratory sequential design?
Initial qualitative data collection
In a sequential mixed methods design, what was the focus of the study mentioned in the text?
Teachers' technology practices and beliefs
What is the conclusion drawn from the example study mentioned in the text?
Technology integration should be focused on student-centered pedagogy
What is the main task for students as part of their assignment based on the text?
Working on the RRL Matrix
What is one of the components that students need to identify in their assignment according to the text?
Sub-theme
What should future technology professional development efforts focus on according to the text?
Integrating technology into curriculum via student-centered pedagogy
Test your knowledge on experimental designs, mixed methods designs, sampling methods, and research ethics. This quiz covers topics such as the use of control groups, variables, hypothesis testing, and true experimental designs.
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