Respuesta :
A researcher administers a pretest of the dependent variable, then administers a treatment to one of two groups in her study, and then, after some time has passed, she administers the same treatment to the other nonequivalent group in her study. This is an example of a "pretest-posttest design with switching replication".
What is switching replication design?
A switching replication design in which two or more groups are randomly assigned to receive treatment at various times in an alternating pattern.
The benefit of doing a switch replication design are-
- Since it ensures that everyone will eventually receive the program, the switching replications architecture helps to mitigate these dangers.
- Additionally, it distributes who receives the program first in the most impartial way possible, using a lottery system of random assignment.
What is pretest-posttest design?
A pre-experimental design that does not include control or comparison groups is known as a pretest-posttest design.
- This is a major difference between pretest–posttest designs and processes such as quasi-experimental designs and randomized controlled trials.
- For instance, one school might administer a pretest on students' attitudes against drugs, expose them to a drug education program, and then administer a posttest. Students in a comparable school take the pretest, are not exposed to a drug-education program, and then take the posttest.
To know more about the replication's importance in simutext, here
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