The school was originally co-educational, but shifted its focus to all-girls education in the aftermath of the Second World War.St. Agnes had been affiliated with the Catholic University of America, Washington, D.C., and been accredited by the Middle States Association of Colleges and Schools.Offering an up-close and personal look at college and careers, students gain valuable insight from accomplished leaders in higher education through a series of experiences, seminars, and workshops at St. Agnes and at the Molloy College campus in Rockville Centre.The D.R.E.A.M BIG Program offers: St. John's University The St. John's College Advantage Program (CAP) provided qualified seniors the opportunity to enroll in college credit courses from the university while still enrolled in high school.St. Agnes currently offers CAP courses in British Authors, College Writing, Advanced Algebra, Calculus, Human Biology, People and the Environment, Psychology, Psychology of Women, and Emergence of a Global Society.