Professor Stenson is examining the effects of color on patients' anxiety levels.She randomly assigns patients to either a room painted white or a room painted black, and then records their blood pressure.In this case, the independent variable is the

Question

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The independent variable in this study is the room color, as this is what is being manipulated by the researcher to see if it has an effect on anxiety levels. The other options, such as blood pressure and anxiety levels, are dependent variables, as they are being measured in response to the independent variable. Building type is not mentioned in this study and is not related to the research question.

Professor Stenson Is Examining the Effects of Color on Patients