Examlex
Which of the following statements is true about illegal immigration?
Natural Experimental Method
An investigative technique where the researcher studies existing natural circumstances that mimic the control of a traditional experiment but lacks random assignment.
Epidemiological Study
Research investigating the frequency, patterns, and causes of diseases and health conditions in defined populations.
Longitudinal Study
A research design that involves repeated observations of the same variables over short or long periods of time.
Experiment
A systematic activity carried out to test a hypothesis, discover a new fact, or demonstrate known facts.
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