Core courses are survey courses that introduce students to major areas of psychology and provide additional background for more advanced courses. Only introductory level courses (100-level courses) that end in zero can count as core courses. These include. PSYC 120, 130, 140, 150, 160, 170, 180, & 190. Note that you must take two core course total, one from the Social Science side of psychology and one from the Natural Science side of psychology. Also note that these courses are not necessarily offered every year, so you may need to plan ahead.