In an experimental procedure,what is manipulated by the investigator to determine whether it influences the phenomenon of interest?

Question

Quizplus · Accepted Answer

The independent variable is the variable that is manipulated by the investigator to determine whether it influences the phenomenon of interest. The dependent variable is the variable that is being measured or observed to see if it changes as a result of the manipulation of the independent variable. The control group is a group in an experiment that is used as a comparison to the experimental group, but is not manipulated in any way. The standardized variable is a variable that is kept constant throughout an experiment. Therefore, the best choice for this question is D, independent variable.

In an Experimental Procedure,what Is Manipulated by the Investigator to Determine