The restrictive assumption of classical parallelism for the Spearman-Brown formulas makes them obsolete when the two-part alpha and coefficient alpha formulas can be used. The alpha coefficients require the less restrictive assumption of essential tau-equivalence. Even small reliability differences produced...
Spearman. The author explains Spearman's correlation coefficient and its application to data rankings and epidemiological studies of chance, bias, and confounding. It highlights the attenuation errors, some formulas for correction and the early versions of the Spearman-Brown equation. It also provides ...
Spearman. The author explains Spearman's correlation coefficient and its application to data rankings and epidemiological studies of chance, bias, and confounding. It highlights the attenuation errors, some formulas for correction and the early versions of the Spearman-Brown equation. It also provides ...