Unformatted text preview: Operational Definition: Definition that specifies the operations (or procedures) used to produce or measure something. A way to give it a numerical value. A major advantage of using experimental research is that you can test if a controlled variable affects some other variable. Requirements for an Experiment: 1. Manipulate at least one IV and measure at least one DV. 2. Compare at least two groups. 3. Randomly assign subjects to groups to cancel out individual differences. 4. Control for any systematic differences between conditions except for the manipulation of the IV. Experimental Group: Group that receives the treatment that an experiments is designed to test. Control Group: Group treated in the same way as the experimental group except for the procedure that the experiments is designed to test. Placebo Effect: People feel or see what they expect to feel or see....
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- Spring '08