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English, 29.01.2020 05:44 ariannecama

Ateacher believes that her students will perform better on a test if they receive extra feedback on their homework. to test this idea, she randomly assigns half of her students to get extra feedback. at the end of the semester, she compares the scores of the students who received extra feedback with those who received a normal amount of feedback. in this example, the dependent variable is

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