Jeffrey J Arnett Ph.D.

Jeffrey Jensen Arnett Ph.D., is the foremost authority in the world on the age period 18-29 that he named “emerging adulthood.” Since Dr. Arnett proposed this term in an acclaimed article in the American Psychologist in 2000 it has become widely used in diverse fields, including psychology, sociology, anthropology, medicine, and education. His book Emerging Adulthood: The Winding Road from the Late Teens Through the Twenties (2004/2015) was described as “informative, insightful, and infectious” by the Washington Post. He is also the author (with Elisabeth Fishel) of Getting to 30: A Parents Guide to the Twentysomething Years, published in 2013 by Workman, among many other books. Beyond his focus on emerging adulthood, Dr. Arnett is interested in reconceptualizing the adult lifespan, and is serving as the senior editor of a Special Issue of American Psychologist on “Rethinking Adult Development: New Ideas for New Times,” to be published in late 2019.

Dr. Arnett has appeared frequently on television, on radio, and in print media, including a cover story in the New York Times Sunday magazine in August, 2010. His television appearances have included The Today Show, NBC Nightly News, and CNN.

Dr. Arnett is a Senior Research Scholar in the Department of Psychology at Clark University in Worcester, Massachusetts. For more information, see

Author of

Adult Development Through the Lifespan

Reconceptualizing adult development for the century to come. Read now.