You want to know if part-time employees become more or less happy with their employment over time. thus, you give a questionnaire to 100 new hires and four months later give the same questionnaire to the same employees. what type of research design have you used?

What did passage of the immigration act of 1965 accomplish? the law lowered the number of asians allowed to immigrate to the us. the law allowed no more immigration from european nations. the law supported victims of political persecution. the law made an effort to establish a quota system.

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New communication technologies, improved transportation, and advanced military weapons made it possible for countries to speed up acquiring territory. rule large amounts of territory. fight off competition from opposing nations. expand their economies, which aided in conguest.