Squared Partial Correlation and/or Squared Semi-partial Correlation Coefficients in the context of this article describe how much a predictor adds to a multiple regression model (1). JMP® does not produce these statistics automatically, but they can be obtained with JSL scripting.
The Pcorr_Scorr.JSL script (attached) produces both Squared Partial Correlation Coefficients and Squared Semi-partial Correlation Coefficients using both Type I, and Type III sums of squares.
(1) These are not the same as Partial Correlations that can be produced in the Multivariate Platform in JMP. In that context, these are about the strength of the linear correlation between two predictors among several when the other correlations have been removed.
[Previously JMP Note 35402]