Examlex
Which of the following type(s) of data collection allow(s) a researcher to determine causality?
Black Virginians
African American residents of Virginia, whose history and contributions are integral to the state's identity, including times of slavery and its aftermath.
Peak-to-peak
A measure of the voltage range in an alternating current (AC) signal, from the highest to the lowest point within one cycle.
Effective
Producing a desired effect, outcome, or ability to successfully bring about a result, particularly in terms of efficiency or potency.
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