The psychological principles of development throughout the lifespan. Each developmental stage from the time of conception and fetal growth through childhood, adolescence, maturity, and aging is examined in relation to the genetic, physiological, intellectual, emotional, and social phenomena relating to the psychological principles that are unique to each of these periods of life. Students may not receive credit for this course and PSYC 333. Prerequisites: C- or better in PSYC110. Group I