Examlex
External validity is _____ by the use of volunteer samples.
Labor Movement
A socio-political movement advocating for the rights and interests of workers, including better working conditions, higher wages, and collective bargaining.
South
A reference often used in the context of the United States to designate the southeastern states, historically characterized by their support for slavery and later segregation.
Abolitionists
Individuals or groups advocating for the immediate end of slavery and the emancipation of slaves, active primarily in the 18th and 19th centuries.
Christmas Holiday
An annual festival commemorating the birth of Jesus Christ, observed primarily on December 25 as a religious and cultural celebration among billions of people around the world.
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