Which of the following is a characteristic of experimental, but not descriptive, research methods?

Question

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Manipulation of variables is a characteristic of experimental research methods, as the researcher seeks to control and manipulate certain variables to test their effects on other variables. Descriptive research methods, on the other hand, do not involve manipulation of variables but focus on gathering information about a phenomenon or group. Analyzation of data, development of theory, and collection of data can be characteristics of both experimental and descriptive research methods.

Which of the Following Is a Characteristic of Experimental, but Not