Since three of the items are exactly the same in the two experiments, the difference in the results from groups one and two is a measure of those who are angered by affirmative action.
(three of the items; are; exactly the same in the two experiments) (the difference in the results from groups; is; a measure of those) (those; are angered; by affirmative action)
three of the items the difference in the results from groups those
are is are angered
exactly the same in the two experiments
a measure of those
by affirmative action