There are lots of studies out there, but which ones are the most reliable? The best way to get an apples-to-apples comparison in social science is to perform something called a randomized control trial (RCT). This research method is also known as random assignment. How does a randomized control trial work? Watch this video to see a real-world example. This time: in K-12 education. To learn more about school choice research, visit
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