Examlex
Why did Congress pass the Voting Rights Act of 1965?
Experimental Group
In an experiment, one or more treatment groups of participants that receive the manipulation of the independent variable being investigated.
Random Assignment
Placing research participants into the conditions of an experiment in such a way that each participant has an equal chance of being assigned to any level of the independent variable.
Random Sampling
A method of sampling in which each member of a population has an equal chance of being selected to represent the whole.
Self-Report Methods
Research or assessment tools where individuals provide data about themselves, typically through questionnaires or interviews.
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