Development Matrix PSY/211 Version 5 1 University of Phoenix Material Development Matrix For each developmental domain, physical, cognitive, and social, identify two major changes or challenges associated with the following stages: adolescence, young adulthood, middle adulthood, and late adulthood. Stage of Development Physical Development Cognitive Development Social Development Adolescence Young adulthood Middle adulthood Late adulthood Copyright © 2013 by University of Phoenix. All rights reserved. .