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Social Studies, 18.09.2019 16:20 uehlingt39
7. which of the following are true statements? i. in well-designed observational studies, responses are systematically influenced during the collection of the data. ii. in well-designed experiments, the treatments result in responses that are as similar as possible. iii. a well-designed experiment always has a single treatment but may test that treatment at different levels.
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7. which of the following are true statements? i. in well-designed observational studies, responses...
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