A researcher predicted that talking to plants enhances their growth.She gave 24 plants the same amount of food,water,and sunlight.She talked to 12 of the plants daily for 6 weeks.In this experiment,what is the independent variable?

Question

Quizplus · Accepted Answer

The independent variable is the variable that is manipulated or changed by the researcher in an experiment to observe its effect on the dependent variable. In this case, the researcher is manipulating whether or not she talks to the plants daily. Therefore, talking is the independent variable. The dependent variable in this experiment is the plant growth, which is being observed and measured to see if there is a difference between the plants that were talked to and those that were not. The amount of food, water, and sunlight given to all plants is a control variable, which is kept constant to ensure that any differences observed in plant growth can be attributed to the independent variable (talking) and not to other factors. Therefore, options A and B are incorrect, and option D is the dependent variable, not the independent variable.

A Researcher Predicted That Talking to Plants Enhances Their Growth