They are expressing "differential association".
Differential association, in criminology is a hypothesis created by Edwin Sutherland recommending that through interacting with others, people take in the qualities, dispositions, methods, and thought processes in criminal conduct. The differential association is the most discussed of the learning theories of deviance. This hypothesis centers around how people figure out how to end up wrongdoers, yet does not worry about why they move toward becoming offenders.
I believe the answer is :Random sampling
Random sampling refers to select a group of subjects that could be used as sample for a research from a large population. The selection is beind done without any criteria in hope that the sample at least represent the general composition of the population.
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Como parte del Compromiso de 1850, California fue admitida como estado libre (1850), sin ser un estado esclavista. Para evitar la creación de una mayoría de estados libres en el Senado, California acordó enviar un delegado a favor de la esclavitud y un senador antiesclavista al Congreso.
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