Frequently Asked Questions
What does a P value of 0.000 mean in correlation matrix results?
FAQ# 1650 Last Modified 8-September-2010
Prism reports the correlation matrix on two tables. One reports the correlation coefficient. The other reports the corresponding P value testing the null hypothesis that the population correlation coefficient is really 0.0. Prism reports these P values using decimals, when they fit, or scientific notation when tiny. For example, "1.23e-14" means 1.23 times ten to the minus fourteenth power.
When the P value is really tiny, less than 1.2e-38, it simply reports the P value as "0.000". If you formatted that column to always use scientific notation, then it shows as "0.0000e+000".