Word Origin and History for attenuate Expand v. to make thin, to make less, 1520s, from Latin attenuatus enfeebled, weak, past participle of attenuare to make thin, lessen, diminish, from ad-to (see ad-) + tenuare make thin, from tenuis thin (see tenet).
Dependent Variable Definition: A dependent variable is the variable being tested in a scientific experiment. The dependent variable is 'dependent' on the independent variable. As the experimenter changes the independent variable, the change in the dependent variable is observed and recorded.
an independent variable (IV) and dependent variable(s) (DVs). An Independent Variable is manipulated (controlled) by the experimenter, and has at least two different conditions (e.g., âtreatmentâ and âcontrolâ conditions). Experimental Research Dependent variablesare measured by the experimenter, and are used to determine the effect of the Independent Variable. In most experiments, researchers measure several dependent variables to learn the effect of the independent variable. Examples of Experimental Research Letâs watch the Psychologist and the Experiment Review: Nonexperimental Versus Experimental Methods Nonexperimental method