Simulation Study of the Asymptotic and Relative Efficiencies of the Conventional Biserial, the Brogden's, and the Lord-Clemans' Correlation Coefficients in Normal and Nonnormal Populations Page: 3
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superior when high relationship existed in the population.
3. Relative to the double exponential populations, the
modified biserial coefficients, especially the
Lord-Clemans1, were more precise in estimating the parameter
than the conventional biserial coefficient which yielded
lower number of coefficients within the specified interval
and tended to have a large standard error of estimate.
Large samples did improve the efficiency in estimation of
the three biserial statistics. However higher cutting
points improved only the efficiency in estimating of the
modified biserial statistics.
4. Relative to the contaminated normal populations, the
conventional biserial coefficient was more precise in
estimating than the two modified biserial coefficients,
especially when low relationship existed in the population.
In contrast, when relatively high relationship existed in
the population and higher cutting points were used, the two
modified biserial coefficients were more precise than the
conventional biserial coefficient.
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Tungsomworapongs, Manop. Simulation Study of the Asymptotic and Relative Efficiencies of the Conventional Biserial, the Brogden's, and the Lord-Clemans' Correlation Coefficients in Normal and Nonnormal Populations, dissertation, December 1983; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc332417/m1/3/: accessed April 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .