How to measure the invisible patterns in categorical data
In short: Most statistical tools are built for numbers like height or weight. This video explores the Chi-Square test, the essential method for analyzing strictly categorical data like hair color, dog breeds, or academic degrees.
The video introduces three primary types of Chi-Square tests used to make meaningful comparisons within data sets. These include the goodness of fit test, the test of independence, and the test of homogeneity.
By understanding these three frameworks, researchers can determine if observed frequencies in categories align with expectations or if different variables are linked in ways that aren't immediately obvious.
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Sources
- Summary by Intellect · source: Chi-Square Tests: Crash Course Statistics #29
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