The Susquehanna chapter, Theta Xi, was chartered in 1977 to promote scholarship and interest in the study of politics. Membership is open to junior and senior majors and non-majors alike, who have completed a specified number of credit hours, have a B average, and who are in the top third of their class. Psi Chi , a national psychology honor society, was chartered at Susquehanna in 1968 to advance the science of psychology and encourage scholarship in all academic fields, particularly psychology. To become a member, a student should have completed three courses in psychology with at least a B average, rank in the top 35 percent of her or his class and be accepted by vote. Sigma Alpha Iota is an internationally incorporated professional society for women in music.
Membership is based on scholarship, musicianship and character.
The organization promotes high standards of professional performance and teaching and the development of music in America and abroad. The Susquehanna chapter, Sigma Omega, was chartered in 1925. Sigma Pi Sigma is the national physics honor society. To be elected, a student must have finished five courses in physics, have a 3.0 GPA in physics and a 3.0 overall GPA, and rank in the top one-third of his or her class. The Susquehanna chapter was chartered in 1988.