Mathematics, 11.08.2021 01:00 xXCoryxKenshinXx

A researcher tests a new mathematics program in one school district and uses a neighboring district as a no-treatment control group. After running the program for six months, the researcher tests the students from both school districts to see if there is a difference. This research cannot be classified as a true experiment because

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A researcher tests a new mathematics program in one school district and uses a neighboring district...

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