Exhibit 10-2: in Its Simplest Form, an Experiment Has Three

Multiple Choice

Exhibit 10-2: In its simplest form, an experiment has three characteristics.Choose the characteristic that corresponds with each example.
-Refer to Exhibit 10-2.Two classes were randomly selected and randomly assigned to be the experimental and control groups.

A) The effect of the independent variable is measured through observation of the dependent variable.
B) Extraneous variables are held constant.
C) An independent variable is manipulated.