Which of the following were progressive era changes to the voting process which gave voters more power? direct primary - all party members voted on who would represent party on ticket recall - voters could remove officials from office early electoral college - established to make sure the public didn't have too much power in selecting leaders initiative - voters could introduce legislation public ballot - voters displayed choices in public to increase scrutiny referendum - allowed citizens to vote on laws directly direct election - all specialized positions in bureaucracy became elected positions without need of training