📊Spearman Rank Correlation
Spearman's rank correlation (rs) measures the strength of the monotonic relationship between two variables using their ranks. It is the non-parametric equivalent of Pearson's r and is more robust to outliers.
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Fun Fact
Spearman correlation is preferred in psychology and social sciences where data is often ordinal (Likert scales, rankings) rather than truly continuous.
References
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