Examlex
What mistakes might we make when we evaluate a message?
Independent Variable
The variable in an experiment that is manipulated to observe its effect on a dependent variable.
Internal Validity
The extent to which a study can demonstrate a cause-and-effect relationship between variables, free from external influence.
Random Assignment
A process used in experimental designs to assign subjects randomly to either the treatment group or the control group, ensuring that each participant has an equal chance of being placed in any group.
Equivalent
Equal in value, function, or meaning.
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