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Digitale Medien

Estimation of a correlation coefficient from an uncertainty measure (1966)

Pearson, William H.

Springer

Psychometrika 31 (1966), S. 421-433

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ISSN: 1860-0980

Quelle: Springer Online Journal Archives 1860-2000

Thema: Psychologie

Notizen: Abstract In this paper graphs are given for estimating a correlationρ XY from a double-entry table. 2H r , twice the statisticH r , “relative uncertainty” (the average of the ratios of the conditional uncertainty of each variable to its uncertainty) was computed. Mean 2H r 's were computed from 100 samples for each of several sample sizes and numbers of categories. Graphs relating mean 2H r to $$\hat r_H$$ , the estimated correlation, for 3–17 categories to each variable and 3 sample sizes—50, 100, and 500—were constructed. 2.5 per cent and 97.5 per cent fiducial limits curves were constructed for establishing confidence limits onρ XY and $$\hat r_H$$ .

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02289473

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