is the International Honor Society in Psychology, in 1929 for the of encouraging, stimulating, and maintaining excellence in scholarship, and advancing the science of psychology. is open to graduate and undergraduate men and women who are majoring or minoring in psychology, and who meet the minimum qualifications (top 35% of their graduating class, at least three psychology courses, and at least a 3.0 GPA in those courses). Psi Chi is a member of the and is an affiliate of the (APA) and the (APS).