Question

For the following experiments, identify the (IV) independent variable, (DV) dependent variable, (CV) control variable.

Different rose bushes are grown in a greenhouse for two months. The number of flowers on each bush is counted at the end of an experiment.

Answer 1

In the greenhouse rose bush experiment, the independent variable is the condition changed by the researcher, and the dependent variable is the number of flowers counted on each bush. Control variables are the factors kept constant throughout the experiment to ensure reliable results.

Step-by-step explanation:

In the experiment with rose bushes grown in a greenhouse, the independent variable (IV) is likely a specific condition that the researcher has changed, such as the type of soil, the amount of fertilizer used, or the frequency of watering. Each of these could potentially affect the growth of the rose bushes. The dependent variable (DV) is the number of flowers on each bush, as this is the outcome measured by the experimenter that could vary in response to the independent variable. Control variables (CV) are any other conditions that the experimenter keeps constant throughout the experiment to ensure that the results are due to the manipulation of the independent variable alone. Examples of control variables might include the temperature of the greenhouse, the type of rose bush, or the amount of light each bush receives.