Partial Correlations Have an Order Associated with Them

Multiple Choice

Partial correlations have an order associated with them.The order indicates how many variables are being adjusted or controlled.The simple correlation coefficient,r,has a ________,as it does not control for any additional variables when measuring the association between two variables.The coefficient r_sy.z is a ________ partial correlation coefficient,as it controls for the effect of one additional variable,Z.

A) zero-order;first-order
B) zero-order;second-order
C) first-order;second-order
D) first-order;third-order