What is recorded here?
Showed mathematically how ratios or indices can exhibit correlation even when their underlying quantities are independently distributed, establishing a distinct form of spurious correlation.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
The record is Pearson’s exact 1897 paper on correlations induced by indices. Galton and Weldon’s appended notes, later ratio-correlation analyses, spurious regression and general causal uses of the phrase remain separate.
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People and systems
Karl Pearson
The named authors contributed to this scoped work; individual effort shares and later applications are not assigned by the byline.
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Documented countries / regions: United Kingdom
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English catalogue narrative
Pearson: spurious correlation from shared indices
Showed mathematically how ratios or indices can exhibit correlation even when their underlying quantities are independently distributed, establishing a distinct form of spurious correlation.
Scientific scope
The record is Pearson’s exact 1897 paper on correlations induced by indices. Galton and Weldon’s appended notes, later ratio-correlation analyses, spurious regression and general causal uses of the phrase remain separate.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
Karl Pearson
The named authors contributed to this scoped work; individual effort shares and later applications are not assigned by the byline.