EVANSTON — Northwestern’s Panhellenic Association made changes to the sorority recruitment process prior to Preview Day this Sunday. Delta Delta Delta Delta Chapter President Kate Denning said, “More and more girls are going Greek, and chapters are changing how they look at their future sisters. Ten years ago, even a brunette would get a bid from Quad-Delt, but now that approximately 40% of girls here are Greek, we’re raising our standards.” Sororities are adding new elements to the rush process,