For Three Intercorrelated Variables:
Given three overlapping correlation coefficients
rXY rXZ and
rYZ
this page will calculate the first-order partial correlations
rXY.Z rXZ.Y and
rYZ.X
To proceed, enter the values of rXY , rXZ , and rYZ into the designated cells below, then click the «Calculate» button. A negative value of r should be preceded by a minus sign: e.g., -.76. Do not enter a plus sign; all entered values are assumed to be positive unless preceded by "-". Values of r2 will calculated and entered automatically.
If you enter the value of N (providing N>6), the program will also calculate the values of t for the partial correlations (df=N3) along with the associated two-tailed probability values.
1st Order Partial Correlations
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©Richard Lowry 2001-
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