For which of the following variables is an experimenter not likely to use random assignment:

Question

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Random assignment is not typically used for variables that are not manipulable, such as diagnosis. Random assignment is used to ensure that participants are assigned to different conditions in an experiment randomly, which helps eliminate bias and increase the generalizability of the results. Time of day, diet, and heart rate are all variables that could be manipulated in an experiment and thus would likely utilize random assignment.

For Which of the Following Variables Is an Experimenter Not