Examlex
Select the correct statement.
Random Assignment
A method used in experiments where participants are allocated to different groups in a way that every participant has an equal chance of being assigned to any group.
Random Sample
A method of selecting a sample from a population in which each member has an equal chance of being chosen.
External Validity
The extent to which the results of a study can be generalized to other situations and to other people.
Internal Validity
The extent to which a study establishes a trustworthy cause-and-effect relationship between a treatment and an outcome.
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