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The Influence of Noise and Non‐Normality on Biserial Correlation Coefficients
Author(s) -
Dünki Rudolf M.
Publication year - 1994
Publication title -
biometrical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.108
H-Index - 63
eISSN - 1521-4036
pISSN - 0323-3847
DOI - 10.1002/bimj.4710360310
Subject(s) - normality , noise (video) , statistics , correlation , mathematics , correlation coefficient , computer science , geometry , artificial intelligence , image (mathematics)
The estimation of any biserial correlation coefficient is biased if noise‐like processes are overlaid. We've carried out a computer simulation to study this effect. The effect can be described in a universal way. Additionally, we've varied the type of distribution within the simulation and compared this effect with the effect of noise. Based on this comparison, we've been able to draw some conclusions on the use of biserial correlation coefficients.