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State SAT Averages (2014)
Average SAT scores and participation rates by US state — the textbook example of a lurking variable.
Average SAT section scores and participation rate for each US state in 2014.
States where fewer students take the SAT have higher averages — a compact, convincing lesson in selection bias and why you always ask who’s in the data.
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Citing this dataset
Course style guide rule: cite the dataset name, provider, and the date you accessed it — e.g. "State SAT Averages (2014). Course data catalog, courses.langd0n.com. Accessed [date]." If the entry names an upstream source (a city portal, a public agency), cite that too.