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Nonexperimental research is research Question 20 options: 1) that lacks the manipulation of an independent variable and random assignment of participants 2) that includes manipulation
Nonexperimental research is research Question 20 options: 1) that lacks the manipulation of an independent variable and random assignment of participants 2) that includes manipulation of an independent variable by at least a factor of two 3) that includes manipulation of the dependent variable by not using random assignment of participants 4) that is seldom used because it is harder to get approval from institutional review boards
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