Convergent validity with the IPDS and the BDI-II was evaluated by using Pearson's r indices of correlations.
This is the first index of correlation; of course it is not conclusive, but only orientative (Fig. 9).
Correlation between the pathologists' evaluations and between final preservation injury degree and cold ischemia time was determined using the "index of correlation rho " (Spearman's test).
The performance evaluation of the SOM structures for estimating sediment yields considered the indexes of correlation (R), relative bias (VR) and efficiency of NASH.
The approach was based on an index of correlation coefficient calculated for the original time series and its abrupt change component.
Since all their tests were meant to measure different layers of the same construct, a highly positive index of correlation could have been interpreted as all reading types fulfilling similar functions, while the lower observed correlations between tests of Basic Comprehension and the others suggested 'a possible distinction' (p. 174) between them.
For a fuller characterization of the associations between traits evaluated, a correlation-based approach was adopted using the Pearson coefficient as an index of correlation.
However, the calculation of correlation coefficients is not a sufficient method to test reliability and reproducibility of a scale, because it is an index of correlation and not an index of agreement [ 17, 19, 20].
However, the calculation of correlation coefficients is not a sufficient method to test reliability and reproducibility of a method and its results, because it is an index of correlation and not an index of agreement [ 18, 20, 21].
Values for indices of rank correlation indicated that the predictive ability of the model was adequate; 96% of the pairs were concordant.
