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Spearman Rank Correlation Coefficient.doc



What Is the Rank Correlation Coefficient?

What Is the Rank Correlation Coefficient?: The formula for Spearman's rank correlation coefficient involves the differences <I>d<sub>I</sub></I> between two sets of <I>n</I> rankings.


GOOGLE RANKING FACTORS U.S. 2012 Social media signals show extremely high correlation: social signals from Facebook, Twitter and Google+ are frequently associated with good rankings in Google's index.

Charles Edward Spearman, FRS was an English psychologist known for work in statistics, as a pioneer of factor analysis, and for Spearman's rank correlation coefficient. He also did seminal work on models for human intelligence, including his theory that disparate cognitive test scores reflect a single General intelligence factor and coining the term g factor.