The Correlation Coefficients

The Correlation Coefficients

Interpretation of correlation coefficients.

A recently published article by Ko et al1 illustrates a commonly encountered problem with the interpretation of correlation coefficients in medical research. The authors stated the correlation coefficient ranged from -0.002 to 0.15. If the P value was greater than 0.05, they interpreted the findings as indicating no correlation. Otherwise, there was weak correlation. The t value of the correlat...

Higher Order Correlation coefficients

Predicting the coefficients of the Daubert and Danner correlation using a neural network model

In the present research, three different architectures were investigated to predict the coefficients of the Daubert and Danner equation for calculation of saturated liquid density. The first architecture with 4 network input parameters including critical temperature, critical pressure, critical volume and molecular weight, the second architecture with 6 network input parameters including the on...

Measurement error and correlation coefficients.