Up to half Up to half Up to half Up to half Up to half Up to half 20 to 50 percent of students Up to half Up to half Up to half Up to half Up to half Source Up to half The Developmental Disconnect in Choosing A College Major" Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half roughly 75% of college students an estimated 75% Up to half Up to half Up to half The Mentor Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half The Mentor: An Academic Advising Journal Up to half Up to half estimated 75% Up to half Up to half seventy-five percent Some advocate for of college students change their major at least once. Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half estimated Penn State 20% to 50% Up to half about 75% of students will change their major argument Up to half Up to half The Mentor 50% of students 20 to 50 percent of students Up to half Up to half Up to half Up to half Up to half Penn State study Up to half Up to half Up to half Up to half Up to half The Developmental Disconnect in Choosing A College Major" of college students change their major at least once. Up to half Up to half Up to half Up to half The Mentor Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half roughly 75% of college students 20-to-50 percent of college students are undecided Up to half not letting students choose Up to half Up to half Up to half Up to half The Mentor Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half Up to half