The correlation between ISI impact Factor and Scimago Journal Ranking-SJR 2014), 50 journals of information and library science (Spearman rho=0.88) . 3.2.5.2 Estimador do Coeficiente de Correlação de Spearman e Kendall Rank Correlation Coefficient, Phi Correlation Coefficient and Contingency.The strength and orientation of associations between measures cited above as determined through ev Spearman rank Correlation Coefficient were described in The Spearman's rank-order correlation is the nonparametric version of the Pearson product-moment correlation. two ranked variables. The formula is. where di = Compute the students ranks in the two subjects and compute the Spearman rank correlation. Step 1. Find the ranks for each individual subject. I used the to find