The variable whose value is measured in a quantitative scientific experiment. The dependent variable changes in response to the independent variable, and is also known as the response, output, or outcome variable.
Example: A researcher wants to examine the effect of a certain fertilizer on the growth rate of plants. Plant growth rate is a dependent variable because the growth rate will change according to the amount of fertilizer the plants receive (the independent variable).
Grinnell, R. (2008). Dependent Variable. Psych Central. Retrieved on May 4, 2015, from http://psychcentral.com/encyclopedia/2008/dependent-variable/