An increase in the current frequency of behavior that has be…

An increase in the current frequency of behavior that has been associated with a particular consequence represents the effect of MOs. A decrease in the current frequency of behavior that has been associated with a particular consequence represents the effect of MOs. An increase in the reinforcing value of some stimulus, object, or events represents the effect of MOs.  A decrease in the reinforcing value of some stimulus, object, or events represents the effect of MOs.