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Essay Quiz
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1
Write the diagram for a randomized posttest-only control group design.
2
One researcher conducted a study using two classes in one school. First the researcher gave a math test to every student in the two classes. The researcher then asked a teacher in one class to use some new methods when teaching math. The teacher in the other class did not use the new methods. At the end of the semester, the researcher again gave the math test to every student in the two classes. What experimental design did this researcher use?
3
Identify the key components of every true experiment.





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