4B: College Intent of Oklahoma Students in the 8th, 10th, 11th and 12th Grades Compared to Actual College Attendance (Source: ACT, Inc. Oklahoma Educational Planning and Assessment System, Special Report; High School to College Going Rates, OSRHE). 2005-06 8th-grade students taking EXPLORE that indicate they are going to college: 64.7%. 2005-06 10th-grade students taking PLAN that indicate they are going to college: 67.4%. 2005-06 11th- and 12th-grade students taking the ACT that indicate they are going to college: 71.1%. 2004-05 high school to college-going rate: 58.6%.