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Social Studies, 06.04.2021 20:00, lesliealaves16
Do the economic benefits of free trade outweigh the social costs?
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Social Studies, 23.06.2019 09:30, Mitchmorgan3816
Oil is a renewable resource can be used directly from the ground is the least polluting energy source must be removed from the earth using drills
Answers: 3
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Social Studies, 23.06.2019 09:30, weeblordd
The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"รขโฌ carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.
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