← Chapter 1 Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All Independent variable The condition or event under study. Controlled variable(s) Conditions that could affect the outcome of an experiment but do not, because they are held constant in both, the experimental and the control groups. Dependent variable(s) Conditions that could change because of the presence of the independent variable. The control An exact copy of the experiment, except the independent variable.