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).
As measures of reliability, we reported Cronbach's alpha, McDonald's omega, and inter-item mean indices of correlation (r ii ) for tests of homogeneity.
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].
Convergent validity with the IPDS and the BDI-II was evaluated by using Pearson's r indices of correlations.
Reliability indexes of Intraclass correlation coefficient (ICC) (≥0.97) and Standard error of measurement (SEM) (≤2.02 mm) demonstrated very high inter-tester and trial-to-trial reliability and accuracy of palpation digitization technique for innominate vector length measurements, irrespective of the two test positions.
