Adolescent Development HDFS 650 Study of physical, social, cognitive, and emotional development of adolescents. Includes examination of contemporary issues related to this age group. Prereq: HDFS 230, 320, 330, or PSYC 250. Class offering(s) related to this course: No class offerings at the moment. Please contact the NDSU DCE office for information about this course offerings at: 701-231-7015 or toll-free: 1-800-726-1724.