- See also: EV
IV stands for Individual Values.
IVs are present in Yo-kai Watch. IVs are determined immediately after befriending or recruiting a Yo-kai. Newly evolved or fused Yo-kai are treated as new IV. Newly Evolved/Fused yo-kai also do not care about the Attitudes they had when they leveled as their previous forms. Their new form will adopt stats as though they were leveled from start-to-finish as their "default" Attitude, just like freshly recruited Yo-Kai do.