What is the defining characteristic of experimental control?

Question

Quizplus · Accepted Answer

Experimental control involves managing unrelated factors or variables that could impact the results of an experiment, also known as controlling for extraneous variables, in order to isolate the effect of the independent variable on the dependent variable. Choosing a random sample and modifying the dependent variable are important aspects of experimental design, but they alone do not define experimental control. Eliminating directionality impacts is not a characteristic of experimental control.

What Is the Defining Characteristic of Experimental Control