Yes, that is correct. You can see the experience bonus if you check the inventory screen and get the total experience before and after killing a monster, but the experience that scrolls up the screen is just the base experience with no bonus added.
With your example, if one character had just learned Wisdom to level 2 and killed a monster that gives 100 experience points, you can check the inventory screen and see that that character now has 2 more experience points than the one who did not learn Wisdom.
